diff --git a/README.md b/README.md
index 40b2948..de8352b 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ To remove them, take the following step.
   "cacheDirs": [
     "/Users/UserName/Library/Application Support/Cycling '74/Max 8/Settings/temp64-live/mxt", 
     "/Users/UserName/Documents/Max 8/Max for Live Devices", 
-    "/Users/UserName/.Trash",
+    "/Users/UserName/.Trash"
   ]
 }
 ```
diff --git a/common/convert_nn_to_freq.maxpat b/abstractions/convert_nn_to_freq.maxpat
similarity index 88%
rename from common/convert_nn_to_freq.maxpat
rename to abstractions/convert_nn_to_freq.maxpat
index 3259440..718f7a7 100644
--- a/common/convert_nn_to_freq.maxpat
+++ b/abstractions/convert_nn_to_freq.maxpat
@@ -10,7 +10,7 @@
 		}
 ,
 		"classnamespace" : "box",
-		"rect" : [ 34.0, 78.0, 855.0, 788.0 ],
+		"rect" : [ 112.0, 78.0, 855.0, 788.0 ],
 		"bglocked" : 0,
 		"openinpresentation" : 0,
 		"default_fontsize" : 12.0,
@@ -39,25 +39,37 @@
 		"subpatcher_template" : "",
 		"boxes" : [ 			{
 				"box" : 				{
-					"id" : "obj-2",
+					"id" : "obj-6",
+					"linecount" : 2,
+					"maxclass" : "comment",
+					"numinlets" : 1,
+					"numoutlets" : 0,
+					"patching_rect" : [ 283.0, 527.0, 177.0, 33.0 ],
+					"text" : "Bending up one semitone: 1 \nBending down one semitone: -1"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"id" : "obj-3",
 					"maxclass" : "newobj",
 					"numinlets" : 1,
-					"numoutlets" : 2,
-					"outlettype" : [ "int", "float" ],
-					"patching_rect" : [ 44.25, 591.0, 60.0, 22.0 ],
-					"text" : "unpack i f"
+					"numoutlets" : 1,
+					"outlettype" : [ "" ],
+					"patching_rect" : [ 250.0, 273.0, 90.0, 22.0 ],
+					"text" : "loadmess 8192"
 				}
 
 			}
 , 			{
 				"box" : 				{
-					"id" : "obj-1",
+					"id" : "obj-4",
 					"maxclass" : "newobj",
-					"numinlets" : 2,
+					"numinlets" : 1,
 					"numoutlets" : 1,
 					"outlettype" : [ "" ],
-					"patching_rect" : [ 44.25, 564.0, 99.75, 22.0 ],
-					"text" : "pak i f"
+					"patching_rect" : [ 416.0, 268.0, 70.0, 22.0 ],
+					"text" : "loadmess 2"
 				}
 
 			}
@@ -112,12 +124,12 @@
 , 			{
 				"box" : 				{
 					"id" : "obj-75",
-					"linecount" : 5,
+					"linecount" : 3,
 					"maxclass" : "comment",
 					"numinlets" : 1,
 					"numoutlets" : 0,
-					"patching_rect" : [ 177.0, 527.0, 104.0, 74.0 ],
-					"text" : "Pitch bend value is represented as float num whose range is between -1 and 1."
+					"patching_rect" : [ 177.0, 527.0, 104.0, 47.0 ],
+					"text" : "Pitch bend value is represented as float num."
 				}
 
 			}
@@ -238,7 +250,7 @@
 					"maxclass" : "inlet",
 					"numinlets" : 0,
 					"numoutlets" : 1,
-					"outlettype" : [ "int" ],
+					"outlettype" : [ "" ],
 					"patching_rect" : [ 44.25, 40.0, 30.0, 30.0 ]
 				}
 
@@ -246,12 +258,13 @@
 , 			{
 				"box" : 				{
 					"comment" : "pitch_bend: int (from 0 to 16383)",
+					"cool" : 1,
 					"id" : "obj-86",
 					"index" : 2,
 					"maxclass" : "inlet",
 					"numinlets" : 0,
 					"numoutlets" : 1,
-					"outlettype" : [ "int" ],
+					"outlettype" : [ "" ],
 					"patching_rect" : [ 125.0, 40.0, 30.0, 30.0 ]
 				}
 
@@ -285,22 +298,15 @@
  ],
 		"lines" : [ 			{
 				"patchline" : 				{
-					"destination" : [ "obj-2", 0 ],
-					"source" : [ "obj-1", 0 ]
-				}
-
-			}
-, 			{
-				"patchline" : 				{
-					"destination" : [ "obj-76", 1 ],
-					"source" : [ "obj-2", 1 ]
+					"destination" : [ "obj-63", 0 ],
+					"source" : [ "obj-3", 0 ]
 				}
 
 			}
 , 			{
 				"patchline" : 				{
-					"destination" : [ "obj-76", 0 ],
-					"source" : [ "obj-2", 0 ]
+					"destination" : [ "obj-45", 0 ],
+					"source" : [ "obj-4", 0 ]
 				}
 
 			}
@@ -348,7 +354,7 @@
 			}
 , 			{
 				"patchline" : 				{
-					"destination" : [ "obj-1", 1 ],
+					"destination" : [ "obj-76", 1 ],
 					"source" : [ "obj-74", 0 ]
 				}
 
@@ -369,7 +375,7 @@
 			}
 , 			{
 				"patchline" : 				{
-					"destination" : [ "obj-1", 0 ],
+					"destination" : [ "obj-76", 0 ],
 					"source" : [ "obj-85", 0 ]
 				}
 
diff --git a/common/receive_mpe.maxpat b/abstractions/receive_mpe.maxpat
similarity index 100%
rename from common/receive_mpe.maxpat
rename to abstractions/receive_mpe.maxpat
diff --git a/common/send_mpe.maxpat b/abstractions/send_mpe.maxpat
similarity index 100%
rename from common/send_mpe.maxpat
rename to abstractions/send_mpe.maxpat
diff --git a/package.json b/package.json
index 85ae445..f9edb0c 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,11 @@
   "author": "spectral-lab",
   "license": "MIT",
   "devDependencies": {
+    "chai": "^4.2.0",
+    "note-parser": "^2.0.1",
     "rimraf": "^2.6.3"
+  },
+  "dependencies": {
+    "tdd-max": "^1.0.3"
   }
 }
diff --git a/projects/mpe_out/main.maxpat b/projects/mpe_out/main.maxpat
index 34e0a6e..02a7b9a 100644
--- a/projects/mpe_out/main.maxpat
+++ b/projects/mpe_out/main.maxpat
@@ -38,6 +38,20 @@
 		"style" : "",
 		"subpatcher_template" : "",
 		"boxes" : [ 			{
+				"box" : 				{
+					"id" : "obj-14",
+					"maxclass" : "message",
+					"numinlets" : 2,
+					"numoutlets" : 1,
+					"outlettype" : [ "" ],
+					"patching_rect" : [ 184.0, 43.0, 79.0, 22.0 ],
+					"presentation" : 1,
+					"presentation_rect" : [ 184.0, 43.0, 79.0, 22.0 ],
+					"text" : "update-menu"
+				}
+
+			}
+, 			{
 				"box" : 				{
 					"id" : "obj-25",
 					"maxclass" : "comment",
@@ -147,21 +161,11 @@
 					"numoutlets" : 1,
 					"outlettype" : [ "" ],
 					"patching_rect" : [ 27.0, 56.0, 75.0, 22.0 ],
+					"presentation" : 1,
+					"presentation_rect" : [ 27.0, 56.0, 75.0, 22.0 ],
 					"text" : "get_track_id"
 				}
 
-			}
-, 			{
-				"box" : 				{
-					"id" : "obj-31",
-					"maxclass" : "message",
-					"numinlets" : 2,
-					"numoutlets" : 1,
-					"outlettype" : [ "" ],
-					"patching_rect" : [ 460.0, 236.0, 61.0, 22.0 ],
-					"text" : "send-midi"
-				}
-
 			}
 , 			{
 				"box" : 				{
@@ -242,7 +246,7 @@
 					"numinlets" : 1,
 					"numoutlets" : 3,
 					"outlettype" : [ "bang", "int", "int" ],
-					"patching_rect" : [ 277.0, 168.0, 83.0, 22.0 ],
+					"patching_rect" : [ 277.0, 13.0, 83.0, 22.0 ],
 					"text" : "live.thisdevice"
 				}
 
@@ -274,7 +278,7 @@
 , 			{
 				"box" : 				{
 					"id" : "obj-13",
-					"items" : [ "IAC Driver Bus 1", ",", "nanoKEY2 CTRL", ",", "to Max 1", ",", "to Max 2" ],
+					"items" : [ "IAC Driver Bus 1", ",", "nanoKEY2 CTRL", ",", "Analog Four Elektron MIDI", ",", "to Max 1", ",", "to Max 2" ],
 					"maxclass" : "umenu",
 					"numinlets" : 1,
 					"numoutlets" : 3,
@@ -293,7 +297,9 @@
 					"numinlets" : 2,
 					"numoutlets" : 1,
 					"outlettype" : [ "" ],
-					"patching_rect" : [ 277.0, 247.0, 64.0, 22.0 ],
+					"patching_rect" : [ 277.0, 56.0, 64.0, 22.0 ],
+					"presentation" : 1,
+					"presentation_rect" : [ 277.0, 56.0, 64.0, 22.0 ],
 					"text" : "script start"
 				}
 
@@ -346,6 +352,13 @@
 					"source" : [ "obj-13", 0 ]
 				}
 
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-1", 0 ],
+					"source" : [ "obj-14", 0 ]
+				}
+
 			}
 , 			{
 				"patchline" : 				{
@@ -410,13 +423,6 @@
 					"source" : [ "obj-3", 0 ]
 				}
 
-			}
-, 			{
-				"patchline" : 				{
-					"destination" : [ "obj-1", 0 ],
-					"source" : [ "obj-31", 0 ]
-				}
-
 			}
 , 			{
 				"patchline" : 				{
diff --git a/test/assets/audio/bird.wav b/projects/test/assets/audio/bird.wav
similarity index 100%
rename from test/assets/audio/bird.wav
rename to projects/test/assets/audio/bird.wav
diff --git a/test/assets/audio/dinasaur.wav b/projects/test/assets/audio/dinasaur.wav
similarity index 100%
rename from test/assets/audio/dinasaur.wav
rename to projects/test/assets/audio/dinasaur.wav
diff --git a/test/assets/audio/horn.wav b/projects/test/assets/audio/horn.wav
similarity index 100%
rename from test/assets/audio/horn.wav
rename to projects/test/assets/audio/horn.wav
diff --git a/test/assets/audio/piano-a4.wav b/projects/test/assets/audio/piano-a4.wav
similarity index 100%
rename from test/assets/audio/piano-a4.wav
rename to projects/test/assets/audio/piano-a4.wav
diff --git a/test/assets/audio/trombone.wav b/projects/test/assets/audio/trombone.wav
similarity index 100%
rename from test/assets/audio/trombone.wav
rename to projects/test/assets/audio/trombone.wav
diff --git a/test/assets/audio/yeah.wav b/projects/test/assets/audio/yeah.wav
similarity index 100%
rename from test/assets/audio/yeah.wav
rename to projects/test/assets/audio/yeah.wav
diff --git a/test/assets/mpe/bird_1.mid b/projects/test/assets/mpe/bird_1.mid
similarity index 100%
rename from test/assets/mpe/bird_1.mid
rename to projects/test/assets/mpe/bird_1.mid
diff --git a/test/assets/mpe/bird_2.mid b/projects/test/assets/mpe/bird_2.mid
similarity index 100%
rename from test/assets/mpe/bird_2.mid
rename to projects/test/assets/mpe/bird_2.mid
diff --git a/test/assets/mpe/bird_3_1.mid b/projects/test/assets/mpe/bird_3_1.mid
similarity index 100%
rename from test/assets/mpe/bird_3_1.mid
rename to projects/test/assets/mpe/bird_3_1.mid
diff --git a/test/assets/mpe/bird_3_2.mid b/projects/test/assets/mpe/bird_3_2.mid
similarity index 100%
rename from test/assets/mpe/bird_3_2.mid
rename to projects/test/assets/mpe/bird_3_2.mid
diff --git a/test/assets/mpe/cricket_drone_1.mid b/projects/test/assets/mpe/cricket_drone_1.mid
similarity index 100%
rename from test/assets/mpe/cricket_drone_1.mid
rename to projects/test/assets/mpe/cricket_drone_1.mid
diff --git a/test/assets/mpe/cricket_drone_1_strong.mid b/projects/test/assets/mpe/cricket_drone_1_strong.mid
similarity index 100%
rename from test/assets/mpe/cricket_drone_1_strong.mid
rename to projects/test/assets/mpe/cricket_drone_1_strong.mid
diff --git a/test/assets/mpe/cricket_drone_2.mid b/projects/test/assets/mpe/cricket_drone_2.mid
similarity index 100%
rename from test/assets/mpe/cricket_drone_2.mid
rename to projects/test/assets/mpe/cricket_drone_2.mid
diff --git a/test/assets/mpe/cricket_pulse_2_strong.mid b/projects/test/assets/mpe/cricket_pulse_2_strong.mid
similarity index 100%
rename from test/assets/mpe/cricket_pulse_2_strong.mid
rename to projects/test/assets/mpe/cricket_pulse_2_strong.mid
diff --git a/test/assets/mpe/cricket_pulse_3.mid b/projects/test/assets/mpe/cricket_pulse_3.mid
similarity index 100%
rename from test/assets/mpe/cricket_pulse_3.mid
rename to projects/test/assets/mpe/cricket_pulse_3.mid
diff --git a/test/assets/mpe/frogs_1.mid b/projects/test/assets/mpe/frogs_1.mid
similarity index 100%
rename from test/assets/mpe/frogs_1.mid
rename to projects/test/assets/mpe/frogs_1.mid
diff --git a/test/assets/mpe/frogs_1_full_voices.mid b/projects/test/assets/mpe/frogs_1_full_voices.mid
similarity index 100%
rename from test/assets/mpe/frogs_1_full_voices.mid
rename to projects/test/assets/mpe/frogs_1_full_voices.mid
diff --git a/test/assets/mpe/frogs_short.mid b/projects/test/assets/mpe/frogs_short.mid
similarity index 100%
rename from test/assets/mpe/frogs_short.mid
rename to projects/test/assets/mpe/frogs_short.mid
diff --git a/test/assets/mpe/frogs_short_full_voices.mid b/projects/test/assets/mpe/frogs_short_full_voices.mid
similarity index 100%
rename from test/assets/mpe/frogs_short_full_voices.mid
rename to projects/test/assets/mpe/frogs_short_full_voices.mid
diff --git a/test/assets/mpe/higara_2_full_voices.mid b/projects/test/assets/mpe/higara_2_full_voices.mid
similarity index 100%
rename from test/assets/mpe/higara_2_full_voices.mid
rename to projects/test/assets/mpe/higara_2_full_voices.mid
diff --git a/test/assets/mpe/higurashi_1_full_voices.mid b/projects/test/assets/mpe/higurashi_1_full_voices.mid
similarity index 100%
rename from test/assets/mpe/higurashi_1_full_voices.mid
rename to projects/test/assets/mpe/higurashi_1_full_voices.mid
diff --git a/test/assets/mpe/japanese_cicada_1.mid b/projects/test/assets/mpe/japanese_cicada_1.mid
similarity index 100%
rename from test/assets/mpe/japanese_cicada_1.mid
rename to projects/test/assets/mpe/japanese_cicada_1.mid
diff --git a/test/assets/mpe/japanese_cicada_1_full_voices.mid b/projects/test/assets/mpe/japanese_cicada_1_full_voices.mid
similarity index 100%
rename from test/assets/mpe/japanese_cicada_1_full_voices.mid
rename to projects/test/assets/mpe/japanese_cicada_1_full_voices.mid
diff --git a/test/assets/mpe/japanese_cicada_short.mid b/projects/test/assets/mpe/japanese_cicada_short.mid
similarity index 100%
rename from test/assets/mpe/japanese_cicada_short.mid
rename to projects/test/assets/mpe/japanese_cicada_short.mid
diff --git a/test/assets/mpe/oceanwaves.mid b/projects/test/assets/mpe/oceanwaves.mid
similarity index 100%
rename from test/assets/mpe/oceanwaves.mid
rename to projects/test/assets/mpe/oceanwaves.mid
diff --git a/projects/test/code/convert_nn_to_freq.test.js b/projects/test/code/convert_nn_to_freq.test.js
new file mode 100644
index 0000000..e0f09fb
--- /dev/null
+++ b/projects/test/code/convert_nn_to_freq.test.js
@@ -0,0 +1,33 @@
+const { assert, expect } = require('chai');
+// @ts-ignore
+const parser = require('note-parser');
+
+module.exports = {
+  target: 'convert_nn_to_freq',
+  initPatcher: function*(maxAPI) {
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 69, 'inlet1':8192, 'inlet2':2 } });
+    assert.notEqual(yield, null, 'isOk');
+  },
+  testNoBend: function*(maxAPI) {
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 60 } });
+    expect(yield, 'Do nothing on C=60').to.be.closeTo(parser.freq(60), 0.1);
+  },
+  testBendUpToTheEnd: function*(maxAPI) {
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 62, 'inlet1':16383 } });
+    expect(yield, 'Bend up from D=62 to E=64').to.be.closeTo(parser.freq(64), 0.1);
+  },
+  testBendDownToTheEnd: function*(maxAPI) {
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 65, 'inlet1':0 } });
+    expect(yield, 'Bend down from F=65 to Eb=63').to.be.closeTo(parser.freq(63), 0.1);
+  },
+  testBendWithRange8: function*(maxAPI) {
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 48, 'inlet1':16383, 'inlet2': 8 } });
+    expect(yield, 'Bend up from C=48 to Ab=56').to.be.closeTo(parser.freq(56), 0.1);
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 48, 'inlet1':0, 'inlet2': 8 } });
+    expect(yield, 'Bend down from C=48 to E=40').to.be.closeTo(parser.freq(40), 0.1);
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 48, 'inlet1':12288, 'inlet2': 8 } });
+    expect(yield, 'Bend up from C=48 to E=52').to.be.closeTo(parser.freq(52), 0.1);
+    maxAPI.outlet({ convert_nn_to_freq: { 'inlet0': 48, 'inlet1':4096, 'inlet2': 8 } });
+    expect(yield, 'Bend down from C=48 to Ab=44').to.be.closeTo(parser.freq(44), 0.1);
+  }
+};
\ No newline at end of file
diff --git a/projects/test/test.maxpat b/projects/test/test.maxpat
new file mode 100644
index 0000000..7258aa3
--- /dev/null
+++ b/projects/test/test.maxpat
@@ -0,0 +1,235 @@
+{
+	"patcher" : 	{
+		"fileversion" : 1,
+		"appversion" : 		{
+			"major" : 8,
+			"minor" : 0,
+			"revision" : 4,
+			"architecture" : "x64",
+			"modernui" : 1
+		}
+,
+		"classnamespace" : "box",
+		"rect" : [ 34.0, 78.0, 942.0, 788.0 ],
+		"bglocked" : 0,
+		"openinpresentation" : 0,
+		"default_fontsize" : 12.0,
+		"default_fontface" : 0,
+		"default_fontname" : "Arial",
+		"gridonopen" : 1,
+		"gridsize" : [ 15.0, 15.0 ],
+		"gridsnaponopen" : 1,
+		"objectsnaponopen" : 1,
+		"statusbarvisible" : 2,
+		"toolbarvisible" : 1,
+		"lefttoolbarpinned" : 0,
+		"toptoolbarpinned" : 0,
+		"righttoolbarpinned" : 0,
+		"bottomtoolbarpinned" : 0,
+		"toolbars_unpinned_last_save" : 0,
+		"tallnewobj" : 0,
+		"boxanimatetime" : 200,
+		"enablehscroll" : 1,
+		"enablevscroll" : 1,
+		"devicewidth" : 0.0,
+		"description" : "",
+		"digest" : "",
+		"tags" : "",
+		"style" : "",
+		"subpatcher_template" : "",
+		"boxes" : [ 			{
+				"box" : 				{
+					"id" : "obj-8",
+					"maxclass" : "message",
+					"numinlets" : 2,
+					"numoutlets" : 1,
+					"outlettype" : [ "" ],
+					"patching_rect" : [ 155.5, 35.0, 63.0, 22.0 ],
+					"text" : "script stop"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"id" : "obj-7",
+					"maxclass" : "message",
+					"numinlets" : 2,
+					"numoutlets" : 1,
+					"outlettype" : [ "" ],
+					"patching_rect" : [ 64.0, 35.0, 64.0, 22.0 ],
+					"text" : "script start"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"id" : "obj-30",
+					"maxclass" : "newobj",
+					"numinlets" : 1,
+					"numoutlets" : 2,
+					"outlettype" : [ "", "" ],
+					"patching_rect" : [ 64.0, 88.0, 137.0, 22.0 ],
+					"text" : "tdd"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"id" : "obj-1",
+					"maxclass" : "newobj",
+					"numinlets" : 2,
+					"numoutlets" : 1,
+					"outlettype" : [ "dictionary" ],
+					"patching_rect" : [ 252.0, 494.0, 217.0, 22.0 ],
+					"text" : "dict.pack outlet0: outlet1: @triggers 0 1"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"id" : "obj-14",
+					"maxclass" : "newobj",
+					"numinlets" : 1,
+					"numoutlets" : 1,
+					"outlettype" : [ "" ],
+					"patching_rect" : [ 64.0, 431.0, 159.0, 22.0 ],
+					"text" : "prepend convert_nn_to_freq"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"color" : [ 0.96078431372549, 0.588235294117647, 0.152941176470588, 1.0 ],
+					"id" : "obj-9",
+					"maxclass" : "newobj",
+					"numinlets" : 3,
+					"numoutlets" : 1,
+					"outlettype" : [ "" ],
+					"patching_rect" : [ 64.0, 334.0, 175.0, 22.0 ],
+					"text" : "convert_nn_to_freq"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"id" : "obj-11",
+					"maxclass" : "newobj",
+					"numinlets" : 1,
+					"numoutlets" : 3,
+					"outlettype" : [ "", "", "" ],
+					"patching_rect" : [ 64.0, 280.0, 175.0, 22.0 ],
+					"text" : "dict.unpack inlet0: inlet1: inlet2:"
+				}
+
+			}
+, 			{
+				"box" : 				{
+					"id" : "obj-12",
+					"maxclass" : "newobj",
+					"numinlets" : 1,
+					"numoutlets" : 1,
+					"outlettype" : [ "" ],
+					"patching_rect" : [ 64.0, 194.0, 179.0, 22.0 ],
+					"text" : "dict.unpack convert_nn_to_freq:"
+				}
+
+			}
+ ],
+		"lines" : [ 			{
+				"patchline" : 				{
+					"destination" : [ "obj-9", 2 ],
+					"source" : [ "obj-11", 2 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-9", 1 ],
+					"source" : [ "obj-11", 1 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-9", 0 ],
+					"source" : [ "obj-11", 0 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-11", 0 ],
+					"source" : [ "obj-12", 0 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-30", 0 ],
+					"midpoints" : [ 73.5, 510.0, 50.166666666666657, 510.0, 50.166666666666657, 77.0, 73.5, 77.0 ],
+					"source" : [ "obj-14", 0 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-12", 0 ],
+					"source" : [ "obj-30", 0 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-30", 0 ],
+					"source" : [ "obj-7", 0 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-30", 0 ],
+					"source" : [ "obj-8", 0 ]
+				}
+
+			}
+, 			{
+				"patchline" : 				{
+					"destination" : [ "obj-14", 0 ],
+					"source" : [ "obj-9", 0 ]
+				}
+
+			}
+ ],
+		"dependency_cache" : [ 			{
+				"name" : "convert_nn_to_freq.maxpat",
+				"bootpath" : "~/repos/m4l-mpe-tools/abstractions",
+				"patcherrelativepath" : "../../abstractions",
+				"type" : "JSON",
+				"implicit" : 1
+			}
+, 			{
+				"name" : "tdd.maxpat",
+				"bootpath" : "~/repos/m4l-mpe-tools/node_modules/tdd-max",
+				"patcherrelativepath" : "../../node_modules/tdd-max",
+				"type" : "JSON",
+				"implicit" : 1
+			}
+, 			{
+				"name" : "tdd.main.js",
+				"bootpath" : "~/repos/m4l-mpe-tools/node_modules/tdd-max",
+				"patcherrelativepath" : "../../node_modules/tdd-max",
+				"type" : "TEXT",
+				"implicit" : 1
+			}
+, 			{
+				"name" : "tdd.console.js",
+				"bootpath" : "~/repos/m4l-mpe-tools/node_modules/tdd-max",
+				"patcherrelativepath" : "../../node_modules/tdd-max",
+				"type" : "TEXT",
+				"implicit" : 1
+			}
+ ],
+		"autosave" : 0
+	}
+
+}
diff --git a/projects/test/test.maxproj b/projects/test/test.maxproj
new file mode 100644
index 0000000..6d32e7f
--- /dev/null
+++ b/projects/test/test.maxproj
@@ -0,0 +1,64 @@
+{
+	"name" : "test",
+	"version" : 1,
+	"creationdate" : 3642055787,
+	"modificationdate" : 3642075359,
+	"viewrect" : [ 0.0, 44.0, 361.0, 533.0 ],
+	"autoorganize" : 0,
+	"hideprojectwindow" : 0,
+	"showdependencies" : 1,
+	"autolocalize" : 0,
+	"contents" : 	{
+		"patchers" : 		{
+			"test.maxpat" : 			{
+				"kind" : "patcher",
+				"local" : 1,
+				"toplevel" : 1,
+				"singleton" : 				{
+					"bootpath" : "~/repos/m4l-mpe-tools/projects/test",
+					"projectrelativepath" : "."
+				}
+
+			}
+
+		}
+,
+		"code" : 		{
+
+		}
+
+	}
+,
+	"layout" : 	{
+
+	}
+,
+	"searchpath" : 	{
+		"0" : 		{
+			"bootpath" : "~/repos/m4l-mpe-tools/node_modules/tdd-max",
+			"projectrelativepath" : "../../node_modules/tdd-max",
+			"label" : "node_modules/tdd-max",
+			"recursive" : 1,
+			"enabled" : 1,
+			"includeincollective" : 0
+		}
+,
+		"1" : 		{
+			"bootpath" : "~/repos/m4l-mpe-tools/abstractions",
+			"projectrelativepath" : "../../abstractions",
+			"label" : "",
+			"recursive" : 1,
+			"enabled" : 1,
+			"includeincollective" : 0
+		}
+
+	}
+,
+	"detailsvisible" : 0,
+	"amxdtype" : 1633771873,
+	"readonly" : 0,
+	"devpathtype" : 0,
+	"devpath" : ".",
+	"sortmode" : 0,
+	"viewmode" : 0
+}
diff --git a/yarn.lock b/yarn.lock
index 201c694..023a1d7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,11 @@
 # yarn lockfile v1
 
 
+assertion-error@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/assertion-error/-/assertion-error-1.1.0.tgz#e60b6b0e8f301bd97e5375215bda406c85118c0b"
+  integrity sha512-jgsaNduz+ndvGyFt3uSuWqvy4lCnIJiovtouQN5JZHOKCS2QuhEdbcQHFhVksz2N2U9hXJo8odG7ETyWlEeuDw==
+
 balanced-match@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
@@ -15,17 +20,55 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
+chai@^4.2.0:
+  version "4.2.0"
+  resolved "https://registry.yarnpkg.com/chai/-/chai-4.2.0.tgz#760aa72cf20e3795e84b12877ce0e83737aa29e5"
+  integrity sha512-XQU3bhBukrOsQCuwZndwGcCVQHyZi53fQ6Ys1Fym7E4olpIqqZZhhoFJoaKVvV17lWQoXYwgWN2nF5crA8J2jw==
+  dependencies:
+    assertion-error "^1.1.0"
+    check-error "^1.0.2"
+    deep-eql "^3.0.1"
+    get-func-name "^2.0.0"
+    pathval "^1.1.0"
+    type-detect "^4.0.5"
+
+check-error@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
+  integrity sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=
+
 concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/concat-map/-/concat-map-0.0.1.tgz#d8a96bd77fd68df7793a73036a3ba0d5405d477b"
   integrity sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=
 
+deep-eql@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-3.0.1.tgz#dfc9404400ad1c8fe023e7da1df1c147c4b444df"
+  integrity sha512-+QeIQyN5ZuO+3Uk5DYh6/1eKO0m0YmJFGNmFHGACpf1ClL1nmlV/p4gNgbl2pJGxgXb4faqo6UE+M5ACEMyVcw==
+  dependencies:
+    type-detect "^4.0.0"
+
+fs-extra@^8.0.1:
+  version "8.0.1"
+  resolved "https://registry.yarnpkg.com/fs-extra/-/fs-extra-8.0.1.tgz#90294081f978b1f182f347a440a209154344285b"
+  integrity sha512-W+XLrggcDzlle47X/XnS7FXrXu9sDo+Ze9zpndeBxdgv88FHLm1HtmkhEwavruS6koanBjp098rUpHs65EmG7A==
+  dependencies:
+    graceful-fs "^4.1.2"
+    jsonfile "^4.0.0"
+    universalify "^0.1.0"
+
 fs.realpath@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fs.realpath/-/fs.realpath-1.0.0.tgz#1504ad2523158caa40db4a2787cb01411994ea4f"
   integrity sha1-FQStJSMVjKpA20onh8sBQRmU6k8=
 
-glob@^7.1.3:
+get-func-name@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/get-func-name/-/get-func-name-2.0.0.tgz#ead774abee72e20409433a066366023dd6887a41"
+  integrity sha1-6td0q+5y4gQJQzoGY2YCPdaIekE=
+
+glob@^7.1.3, glob@^7.1.4:
   version "7.1.4"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.4.tgz#aa608a2f6c577ad357e1ae5a5c26d9a8d1969255"
   integrity sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==
@@ -37,6 +80,11 @@ glob@^7.1.3:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+graceful-fs@^4.1.2, graceful-fs@^4.1.6:
+  version "4.1.15"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
+  integrity sha512-6uHUhOPEBgQ24HM+r6b/QwWfZq+yiFcipKFrOFiBEnWdy5sdzYoi+pJeQaPI5qOLRFqWmAXUPQNsielzdLoecA==
+
 inflight@^1.0.4:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/inflight/-/inflight-1.0.6.tgz#49bd6331d7d02d0c09bc910a1075ba8165b56df9"
@@ -50,6 +98,13 @@ inherits@2:
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
   integrity sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=
 
+jsonfile@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/jsonfile/-/jsonfile-4.0.0.tgz#8771aae0799b64076b76640fca058f9c10e33ecb"
+  integrity sha1-h3Gq4HmbZAdrdmQPygWPnBDjPss=
+  optionalDependencies:
+    graceful-fs "^4.1.6"
+
 minimatch@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-3.0.4.tgz#5166e286457f03306064be5497e8dbb0c3d32083"
@@ -57,6 +112,11 @@ minimatch@^3.0.4:
   dependencies:
     brace-expansion "^1.1.7"
 
+note-parser@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/note-parser/-/note-parser-2.0.1.tgz#2438fd57a46894b402b3a2071798660129c8fbc1"
+  integrity sha1-JDj9V6RolLQCs6IHF5hmASnI+8E=
+
 once@^1.3.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/once/-/once-1.4.0.tgz#583b1aa775961d4b113ac17d9c50baef9dd76bd1"
@@ -69,6 +129,11 @@ path-is-absolute@^1.0.0:
   resolved "https://registry.yarnpkg.com/path-is-absolute/-/path-is-absolute-1.0.1.tgz#174b9268735534ffbc7ace6bf53a5a9e1b5c5f5f"
   integrity sha1-F0uSaHNVNP+8es5r9TpanhtcX18=
 
+pathval@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/pathval/-/pathval-1.1.0.tgz#b942e6d4bde653005ef6b71361def8727d0645e0"
+  integrity sha1-uULm1L3mUwBe9rcTYd74cn0GReA=
+
 rimraf@^2.6.3:
   version "2.6.3"
   resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
@@ -76,6 +141,25 @@ rimraf@^2.6.3:
   dependencies:
     glob "^7.1.3"
 
+tdd-max@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/tdd-max/-/tdd-max-1.0.3.tgz#83f7f6d62cf504796b446188210e5c000bfc36bb"
+  integrity sha512-9T25zXyZHi/zavVfrgh6vuoeYANWHOHHFAkR3Gi5gEca7nbiqcdh9LNymHwRuKEgWDygK+RhXqANLgrxYjx/OA==
+  dependencies:
+    chai "^4.2.0"
+    fs-extra "^8.0.1"
+    glob "^7.1.4"
+
+type-detect@^4.0.0, type-detect@^4.0.5:
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
+  integrity sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==
+
+universalify@^0.1.0:
+  version "0.1.2"
+  resolved "https://registry.yarnpkg.com/universalify/-/universalify-0.1.2.tgz#b646f69be3942dabcecc9d6639c80dc105efaa66"
+  integrity sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg==
+
 wrappy@1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/wrappy/-/wrappy-1.0.2.tgz#b5243d8f3ec1aa35f1364605bc0d1036e30ab69f"