Figured out some midi channel stuff

4 files changed, 33 insertions, 18 deletions

diff --git a/README.md b/README.md
index 6450ef9..b7191a3 100644
--- a/README.md
+++ b/README.md
@@ -81,6 +81,21 @@ npm install
 npm start
 ```
 
+## Notes
+
+- `0x92 & 0xf0 = 144`, Ch3 noteOn
+- `0x80 & 0xf0 = 128`, Ch1 noteOff
+
+```
+function frequencyFromNoteNumber(note) {
+    return 440 * Math.pow(2, (note - 69) / 12);
+}
+```
+
+- Note values are on a range from 0–127, lowest to highest. For example, the lowest note on an 88-key piano has a value of 21, and the highest note is 108. A “middle C” is 60.
+- Velocity values are also given on a range from 0–127 (softest to loudest). The softest possible “note on” velocity is 1.
+
+
 ## TODO
 
 The idea is to build a synth/mini sequencer, here's some tasks I need to tackle before then.
diff --git a/desktop/core/lib.js b/desktop/core/lib.js
index 47ded70..eaab5b8 100644
--- a/desktop/core/lib.js
+++ b/desktop/core/lib.js
@@ -52,6 +52,6 @@ module.exports = {
   queries: {
     'bpm': require('./lib/__bpm'),
     'vol': require('./lib/__vol'),
-    'qqq': require('./lib/__qqq'),
+    'qqq': require('./lib/__qqq')
   }
 }
diff --git a/desktop/core/lib/__qqq.js b/desktop/core/lib/__qqq.js
index 199d778..a91affb 100644
--- a/desktop/core/lib/__qqq.js
+++ b/desktop/core/lib/__qqq.js
@@ -17,8 +17,8 @@ function FnQqq (pico, x, y) {
 
   this.run = function () {
     const n = this.north()
-    if(n){
-      terminal.qqq.play()  
+    if (n) {
+      terminal.qqq.play()
     }
   }
 }
diff --git a/desktop/sources/scripts/qqq.js b/desktop/sources/scripts/qqq.js
index 5710ab5..3eb2bc5 100644
--- a/desktop/sources/scripts/qqq.js
+++ b/desktop/sources/scripts/qqq.js
@@ -17,30 +17,30 @@ function QQQ (terminal) {
   }
 
   this.midiActive = function (midiAccess) {
-
-    const iter = midiAccess.outputs.values();
+    const iter = midiAccess.outputs.values()
     for (let i = iter.next(); i && !i.done; i = iter.next()) {
       console.log(terminal.qqq)
-      terminal.qqq.outputs.push(i.value);
+      terminal.qqq.outputs.push(i.value)
     }
   }
 
   this.midiInactive = function (err) {
-    console.warn("No Midi")
+    console.warn('No Midi')
   }
 
   this.play = function () {
-    let noteon, noteoff;
-    noteon = [0x92, 60, 127];
-    noteoff = [0x82, 60, 127];
-
-    terminal.qqq.outputs[0].send(noteon);
-    setTimeout(
-      function() {
-        // terminal.qqq.outputs[0].send(noteoff);
-      },
-      500
-    );
+    this.ch1()
+    this.ch3()
+  }
+
+  this.ch1 = function () {
+    terminal.qqq.outputs[0].send([0x90, 60, 127])
+    terminal.qqq.outputs[0].send([0x80, 60, 127], window.performance.now() + 250.0)
+  }
+
+  this.ch3 = function () {
+    terminal.qqq.outputs[0].send([0x92, 60, 127])
+    terminal.qqq.outputs[0].send([0x82, 60, 127], window.performance.now() + 250.0)
   }
 
   this.setVolume = function (value) {