MiniMidi - Parses a MIDI file - For each track, the "noteOn" events are saved as [deltaTime, value]. - deltaTime x 10 is the number of milliseconds since the last event (for the first note, last event is the beginning of the song). - All other events are ignored. Note duration and volume are ignored too (uncomment "noteOff" and "velocity" in the code" if you need them). Examples: JSON: ASCII (one line per track): Golfed player (586b with miniPiano): A=new AudioContext; piano=e=>{var t,a,n,r,f,o=A.createBuffer(1,1e6,44100);for(1,[],0,t=(e,t,a,n)=>Math.sin(e/t*6.28*a+n),a=(e,a)=>Math.sin(e/44100*a*6.28+t(e,44100,a,0)**2+.75*t(e,44100,a,.25)+.1*t(e,44100,a,.5)),f=[],n=0;n<44100;n++)f[n]=n<88?n/88.2*a(n,e):(1-(n-88.2)/44011.8)**((.5*Math.log(1e4*e/44100))**2)*a(n,e);o.getChannelData(0).set(f),(r=A.createBufferSource()).buffer=o,r.connect(A.destination),r.start()} play=(o,t,i,n,e)=>{for(i in t=o.split`\n`)for(n=e=0;n<t[i].length;n+=2)e+=10*(t[i].codePointAt(n)-32),setTimeout("piano("+440*1.06**(t[i].codePointAt(n+1)-80)+")",e)} // play(ascii_output);