davidbau.com

Hi David,

thanks for musical.js. I incorportated it in a project to draw notes for table harp.

How can I achieve that musical.js obeys the speed denoted in the Q: directive: (e.g. Q:1/4=120)
without pre parsing the ABC - Code and deliver the setting as option to the play method.

B.

Hello David,
I'd like to use this library in order to create a small game. Is it possible to know the voice that is being played in events noteon and noteof? I mean, in the ABC string, there could be different voices, and it would be nice to determine the voice id.
Thanks a lot for your work

Hi David,

The class is great and the piano is very well imitated.

I am trying to use it in a chord maker program

Has the class by chance a method for doing pause and resume ?

Best regards

Awesome piece of code :-) At https://gospelriver.com/play_abc/ is a sample that behaves weirdly:

Set Q:120 and it plays at a good temp but quits about half way through (2 phrases)
Set Q:100 and it gets through the 3rd phrase and a couple of measures beyond . . . and quits
Set Q:80 and it plays REALLY SLOWLY but finishes.

This is on Windows. On my iPad it quits just a couple of measures in. That smells like a timing issue . . . Any clues? Thanks so much.

Another html in my testbed, same song, same behavior:

-----------------

ABC Test in Musical


Lyngham

var inst = new Instrument('piano');

function scale() {
// Change the inst to sound more like a inst.
// inst.setTimbre('square');
inst.play(
"X:1\n" +
"T:Lyngham-Alfred 4 Voice\n" +
"T:PM\n" +
"C:Thomas Jarman\n" +
"L:1/4\n" +
"Q:80\n" +
"M:4/4\n" +
"K:G\n" +
"%%score (S A) (T B)\n" +
"V:S name=\"S\" clef=treble middle=B\n" +
"V:A name=\"A\" clef=treble middle=B\n" +
"V:T name=\"T\" clef=bass,,\n" +
"V:B name=\"B\" clef=bass,,\n" +
"[V:S] G2 B>c | (d/>e/d/c/B) c | (BG)(AF) | G3 ||B | cB AG | A3A | (B/A/B/c/d) e | d2 ^c2 | d4 ||d2 dd | (B>AG)B | (cBA)G | A3 ||z | z3 G | cc cc | B3B | AA A/B/c/>A/ | dF Gd | (edc)B | A3 A | G4 |]\n" +
"[V:A] D2 D>D | D3 E | D2 D2 | D3 ||G | FG2 E | F3F | G3 G | F2 E2 | F4 ||G2 GG | G3G | (FG2)E | F3 ||z | z3 z | EE EE | D3D | DF F/G/A/>F/ | G3 G | (G2 F)G | G2F2 | G4] |]\n" +
"[V:T] b,,2 g,,>a,, | (b,,/>c,/ b,,/a,,/g,,)g,, | (g,,b,,) (c,,a,,)| b,,3||d, | d,d,d,^c, | d,3d, | (d,>c,b,,)b,, | a,,2 a,,2 | a,,4 ||b,,2 b,, b,, | (d,>c,b,,) d, | d,3^c, | d,3 ||d, | g,, a,, b,, g,, |g,,3g,, | g,,d,b,,g,, | f,,a,, d,c, | b,,a,, b,,b,, | (c,d,d,)d, | d,3c, | b,,4 |]\n" +
"[V:B] g,,2 g,,>g,, | g,,3 c,, | d,,2 d,,2 | g,,3||g,, | a,,g,, f,,e,, | d,,3d,, | g,,3e,, | a,,2 a,,,2 | d,,4 ||g,,2 g,,g,, | g,,3 g,, | a,,g,,f,,e,, | d,,3||d,,| g,, a,, b,, g,, |c,,3c,, | g,,g,, g,,g,, | d,,3d,, | g,,f,, g,,g,, | (c,b,,a,,)g,, | d,,3d,, | g,,,4 |]\n"
);
}

scale();

Since mine is the last comment and it is a bit of a downer I wanted to give credit where credit is due. We figured out the issue above and have made several other minor fixes, including support for fermatas. We are basing a significant hymnbook on this little library because it is cross platform. Rosen’s abcjs sounds better and we are using it for scores . . . But it uses a different method for playback that severely limits cross platform playback. This litte guy is the engine that could. I just didn’t want to leave a bad impression.