venue.js

midiData={
  program:[
    { number:0,name:'Acoustic Grand Piano' },
    { number:1,name:'Bright Acoustic Piano' },
    { number:2,name:'Electric Grand Piano' },
    { number:3,name:'Honky-tonk Piano' },
    { number:4,name:'Electric Piano 1' },
    { number:5,name:'Electric Piano 2' },
    { number:6,name:'Harpsichord' },
    { number:7,name:'Clavi' },
    { number:8,name:'Celesta' },
    { number:9,name:'Glockenspiel' },
    { number:10,name:'Music Box' },
    { number:11,name:'Vibraphone' },
    { number:12,name:'Marimba' },
    { number:13,name:'Xylophone' },
    { number:14,name:'Tubular Bells' },
    { number:15,name:'Dulcimer' },
    { number:16,name:'Drawbar Organ' },
    { number:17,name:'Percussive Organ' },
    { number:18,name:'Rock Organ' },
    { number:19,name:'Church Organ' },
    { number:20,name:'Reed Organ' },
    { number:21,name:'Accordion' },
    { number:22,name:'Harmonica' },
    { number:23,name:'Tango Accordion' },
    { number:24,name:'Acoustic Guitar (nylon)' },
    { number:25,name:'Acoustic Guitar (steel)' },
    { number:26,name:'Electric Guitar (jazz)' },
    { number:27,name:'Electric Guitar (clean)' },
    { number:28,name:'Electric Guitar (muted)' },
    { number:29,name:'Overdriven Guitar' },
    { number:30,name:'Distortion Guitar' },
    { number:31,name:'Guitar Harmonics' },
    { number:32,name:'Acoustic Bass' },
    { number:33,name:'Electric Bass (finger)' },
    { number:34,name:'Electric Bass (pick)' },
    { number:35,name:'Fretless Bass' },
    { number:36,name:'Slap Bass 1' },
    { number:37,name:'Slap Bass 2' },
    { number:38,name:'Synth Bass 1' },
    { number:39,name:'Synth Bass 2' },
    { number:40,name:'Violin' },
    { number:41,name:'Viola' },
    { number:42,name:'Cello' },
    { number:43,name:'Contrabass' },
    { number:44,name:'Tremolo Strings' },
    { number:45,name:'Pizzicato Strings' },
    { number:46,name:'Orchestral Harp' },
    { number:47,name:'Timpani' },
    { number:48,name:'String Ensemble 1' },
    { number:49,name:'String Ensemble 2' },
    { number:50,name:'Synth Strings 1' },
    { number:51,name:'Synth Strings 2' },
    { number:52,name:'Choir Aahs' },
    { number:53,name:'Voice Oohs' },
    { number:54,name:'Synth Voice' },
    { number:55,name:'Orchestra Hit' },
    { number:56,name:'Trumpet' },
    { number:57,name:'Trombone' },
    { number:58,name:'Tuba' },
    { number:59,name:'Muted Trumpet' },
    { number:60,name:'French Horn' },
    { number:61,name:'Brass Section' },
    { number:62,name:'Synth Brass 1' },
    { number:63,name:'Synth Brass 2' },
    { number:64,name:'Soprano Sax' },
    { number:65,name:'Alto Sax' },
    { number:66,name:'Tenor Sax' },
    { number:67,name:'Baritone Sax' },
    { number:68,name:'Oboe' },
    { number:69,name:'English Horn' },
    { number:70,name:'Bassoon' },
    { number:71,name:'Clarinet' },
    { number:72,name:'Piccolo' },
    { number:73,name:'Flute' },
    { number:74,name:'Recorder' },
    { number:75,name:'Pan Flute' },
    { number:76,name:'Blown Bottle' },
    { number:77,name:'Shakuhachi' },
    { number:78,name:'Whistle' },
    { number:79,name:'Ocarina' },
    { number:80,name:'Lead 1 (square)' },
    { number:81,name:'Lead 2 (sawtooth)' },
    { number:82,name:'Lead 3 (calliope)' },
    { number:83,name:'Lead 4 (chiff)' },
    { number:84,name:'Lead 5 (charang)' },
    { number:85,name:'Lead 6 (voice)' },
    { number:86,name:'Lead 7 (fifths)' },
    { number:87,name:'Lead 8 (bass + lead)' },
    { number:88,name:'Pad 1 (new age)' },
    { number:89,name:'Pad 2 (warm)' },
    { number:90,name:'Pad 3 (polysynth)' },
    { number:91,name:'Pad 4 (choir)' },
    { number:92,name:'Pad 5 (bowed)' },
    { number:93,name:'Pad 6 (metallic)' },
    { number:94,name:'Pad 7 (halo)' },
    { number:95,name:'Pad 8 (sweep)' },
    { number:96,name:'FX 1 (rain)' },
    { number:97,name:'FX 2 (soundtrack)' },
    { number:98,name:'FX 3 (crystal)' },
    { number:99,name:'FX 4 (atmosphere)' },
    { number:100,name:'FX 5 (brightness)' },
    { number:101,name:'FX 6 (goblins)' },
    { number:102,name:'FX 7 (echoes)' },
    { number:103,name:'FX 8 (sci-fi)' },
    { number:104,name:'Sitar' },
    { number:105,name:'Banjo' },
    { number:106,name:'Shamisen' },
    { number:107,name:'Koto' },
    { number:108,name:'Kalimba' },
    { number:109,name:'Bagpipe' },
    { number:110,name:'Fiddle' },
    { number:111,name:'Shanai' },
    { number:112,name:'Tinkle Bell' },
    { number:113,name:'Agogo' },
    { number:114,name:'Steel Drums' },
    { number:115,name:'Woodblock' },
    { number:116,name:'Taiko Drum' },
    { number:117,name:'Melodic Tom' },
    { number:118,name:'Synth Drum' },
    { number:119,name:'Reverse Cymbal' },
    { number:120,name:'Guitar Fret Noise' },
    { number:121,name:'Breath Noise' },
    { number:122,name:'Seashore' },
    { number:123,name:'Bird Tweet' },
    { number:124,name:'Telephone Ring' },
    { number:125,name:'Helicopter' },
    { number:126,name:'Applause' },
    { number:127,name:'Gunshot' }
  ],
  control:[ // http://midi.teragonaudio.com/tech/midispec.htm
    { number:0,name:'Bank Select (coarse)' },
    { number:1,name:'Modulation Wheel (coarse)' },
    { number:2,name:'Breath controller (coarse)' },
    { number:4,name:'Foot Pedal (coarse)' },
    { number:5,name:'Portamento Time (coarse)' },
    { number:6,name:'Data Entry (coarse)' },
    { number:7,name:'Volume (coarse)' },
    { number:8,name:'Balance (coarse)' },
    { number:10,name:'Pan position (coarse)' },
    { number:11,name:'Expression (coarse)' },
    { number:12,name:'Effect Control 1 (coarse)' },
    { number:13,name:'Effect Control 2 (coarse)' },
    { number:16,name:'General Purpose Slider 1' },
    { number:17,name:'General Purpose Slider 2' },
    { number:18,name:'General Purpose Slider 3' },
    { number:19,name:'General Purpose Slider 4' },
    { number:32,name:'Bank Select (fine)' },
    { number:33,name:'Modulation Wheel (fine)' },
    { number:34,name:'Breath controller (fine)' },
    { number:36,name:'Foot Pedal (fine)' },
    { number:37,name:'Portamento Time (fine)' },
    { number:38,name:'Data Entry (fine)' },
    { number:39,name:'Volume (fine)' },
    { number:40,name:'Balance (fine)' },
    { number:42,name:'Pan position (fine)' },
    { number:43,name:'Expression (fine)' },
    { number:44,name:'Effect Control 1 (fine)' },
    { number:45,name:'Effect Control 2 (fine)' },
    { number:64,name:'Hold Pedal (on/off)' },
    { number:65,name:'Portamento (on/off)' },
    { number:66,name:'Sustenuto Pedal (on/off)' },
    { number:67,name:'Soft Pedal (on/off)' },
    { number:68,name:'Legato Pedal (on/off)' },
    { number:69,name:'Hold 2 Pedal (on/off)' },
    { number:70,name:'Sound Variation' },
    { number:71,name:'Sound Timbre' },
    { number:72,name:'Sound Release Time' },
    { number:73,name:'Sound Attack Time' },
    { number:74,name:'Sound Brightness' },
    { number:75,name:'Sound Control 6' },
    { number:76,name:'Sound Control 7' },
    { number:77,name:'Sound Control 8' },
    { number:78,name:'Sound Control 9' },
    { number:79,name:'Sound Control 10' },
    { number:80,name:'General Purpose Button 1 (on/off)' },
    { number:81,name:'General Purpose Button 2 (on/off)' },
    { number:82,name:'General Purpose Button 3 (on/off)' },
    { number:83,name:'General Purpose Button 4 (on/off)' },
    { number:91,name:'Effects Level' },
    { number:92,name:'Tremulo Level' },
    { number:93,name:'Chorus Level' },
    { number:94,name:'Celeste Level' },
    { number:95,name:'Phaser Level' },
    { number:96,name:'Data Button increment' },
    { number:97,name:'Data Button decrement' },
    { number:98,name:'Non-registered Parameter (fine)' },
    { number:99,name:'Non-registered Parameter (coarse)' },
    { number:100,name:'Registered Parameter (fine)' },
    { number:101,name:'Registered Parameter (coarse)' },
    { number:120,name:'All Sound Off' },
    { number:121,name:'All Controllers Off' },
    { number:122,name:'Local Keyboard (on/off)' },
    { number:123,name:'All Notes Off' },
    { number:124,name:'Omni Mode Off' },
    { number:125,name:'Omni Mode On' },
    { number:126,name:'Mono Operation' },
    { number:127,name:'Poly Operation' }
  ]
};
getMidiValue=(category,name)=>{  category=category.toLowerCase();  name=name.toLowerCase();
  if (!midiData[category]) {  console.warn(`Invalid MIDI category: ${category}`);
    return null;
  }
  const item=midiData[category].find(item=>item.name.toLowerCase()===name);
  return item ? item.number : null;
};
primaryInstrument=getMidiValue('program',primaryInstrument);
secondaryInstrument=getMidiValue('program',secondaryInstrument);
bassInstrument=getMidiValue('program',bassInstrument);
bassInstrument2=getMidiValue('program',bassInstrument2);

t=require('tonal');

allNotes=t.Scale.get('C chromatic').notes.map(note=>
  t.Note.enharmonic(t.Note.get(note))
);

allScales=t.Scale.names().filter(scaleName=>{
  return allNotes.some(root=>{
    const scale=t.Scale.get(`${root} ${scaleName}`);
    return scale.notes.length > 0;
  });
});

allChords=(function() {
  function getChordNotes(chordType,root) {
    const chord=t.Chord.get(`${root} ${chordType}`);
    if (!chord.empty && chord.symbol) {
      return { symbol: chord.symbol,notes: chord.notes };
    }
  }
  const allChords=new Set();
  t.ChordType.all().forEach(chordType=>{
    allNotes.forEach(root=>{
      const chord=getChordNotes(chordType.name,root);
      if (chord) {  allChords.add(chord.symbol);  }
    });
  });
  return Array.from(allChords);
})();

allModes=(()=>{
  const allModes=new Set();
  t.Mode.all().forEach(mode=>{
    allNotes.forEach(root=>{
      const modeName=`${root} ${mode.name}`;
      allModes.add(modeName);
    });
  });
  return Array.from(allModes);
})();