adding beats

Author: ianmunrobot

app/basic-beat.js

@@ -0,0 +1,88 @@
+const Tone = require('tone');
+
+var drumCompress = new Tone.Compressor({
+		"threshold" : -12,
+		"ratio" : 6,
+		"attack" : 0.3,
+		"release" : 0.1
+	}).toMaster();
+
+var drum1 = new Tone.MembraneSynth({
+  "pitchDecay" : 0.016,
+  "octaves" : 2,
+  "envelope" : {
+    "attack" : 0.0006,
+    "decay" : 0.5,
+    "sustain" : 0
+  }
+}).chain(drumCompress);
+
+
+var membranePart = new Tone.Sequence(function(time, pitch){
+  drum1.triggerAttack(pitch, time, Math.random()*0.5 + 0.5);
+}, ["F2", 'F3', "Eb3", "C3", null, "C3", null, "Eb2"], "8n").start(0);
+membranePart.loop = true;
+membranePart.loopEnd = "1m";
+
+var drum2 = new Tone.MembraneSynth({
+  "pitchDecay" : 0.02,
+  "octaves" : 10,
+  "envelope" : {
+    "attack" : 0.006,
+    "decay" : 0.5,
+    "sustain" : 0
+  },
+  "volume": -12
+}).chain(drumCompress);
+
+
+// var membranePart2 = new Tone.Sequence(function(time, pitch){
+//   drum2.triggerAttack(pitch, time, Math.random()*0.5 + 0.5);
+// }, [null, 'D4', "Eb3", "Gb4", null, "C5", null, "Eb5", 'F5'], "16n").start(0);
+// membranePart2.loop = true;
+// membranePart2.loopEnd = "2n";
+
+
+var bell = new Tone.MetalSynth({
+			"harmonicity" : 7,
+			"resonance" : 400,
+			"modulationIndex" : 10,
+			"envelope" : {
+				"decay" : 0.4,
+			},
+			"volume" : -18
+		}).toMaster();
+		var bellPart = new Tone.Sequence(function(time, freq){
+			bell.frequency.setValueAtTime(freq, time, Math.random()*0.3 + 0.3);
+			bell.triggerAttack(time);
+		}, [150, null, 100, null, 200, 175, null, 200, null, 133, null, 200], "16t").start(0);
+
+
+var bassPart = new Tone.Part(function(time, event){
+		if (Math.random() < event.prob){
+			drum2.triggerAttackRelease(event.note, event.dur, time);
+		}
+	}, [
+    {time : "0:0", note : "C5", dur : "4n + 8n", prob: 1},
+    {time : "0:2", note : "C5", dur : "8n", prob : 0.6},
+		{time : "0:2 + 4t", note : "C5", dur : "8n", prob : 0.4},
+    {time : "0:2 + 4t*2", note : "C5", dur : "8n", prob : 0.9},
+		{time : "1:0", note : "C4", dur : "4n + 8n", prob : 1},
+    {time : "1:2", note : "C5", dur : "8n", prob : 0.6},
+		{time : "1:2 + 4t", note : "C5", dur : "8n", prob : 0.4},
+    {time : "1:2 + 4t*2", note : "Eb5", dur : "8n", prob : 0.9},
+		{time : "2:0", note : "F5", dur : "4n + 8n", prob : 1},
+    {time : "2:2", note : "F5", dur : "8n", prob : 0.6},
+		{time : "2:2 + 4t", note : "F4", dur : "8n", prob : 0.4},
+    {time : "2:2 + 4t*2", note : "F5", dur : "8n", prob : 0.9},
+		{time : "3:0", note : "F5", dur : "4n + 8n", prob : 1},
+    {time : "3:2", note : "F4", dur : "8n", prob : 0.6},
+		{time : "3:2 + 4t", note : "F5", dur : "8n", prob : 0.4},
+    {time : "3:2 + 4t*2", note : "Bb4", dur : "8n", prob : 0.9}]).start(0);
+
+  bassPart.loop = true;
+	bassPart.loopEnd = "2m";
+
+Tone.Transport.bpm.value = 72;
+
+Tone.Transport.start("+0.1")

app/index.js

@@ -1,6 +1,8 @@
 const Tone = require('tone')
 const EventEmitter = require('./event-emitter')
 
+const drums = require('./basic-beat')
+
 var socket = io(window.location.origin)
 let room = window.location.pathname.slice(1);