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filipedeschamps
That's very funny. You should do a Mario theme song also :)
jeffehobbs
Nifty! I'd love to be able to specify tone (sine wave, square wave, triangle wave).
thegeomaster
I'd love to specify wave types or even more advanced stuff such as FM synthesis. With a little work, modules such as this one may enable a whole new category of innovative/strange browser apps.
ricardobeat
A friend recently created something similar, and he ended up transcribing the full-length Super Mario theme song! http://eshiota.github.io/retro-audio-js/

Presentation here: http://www.slideshare.net/eshiota/web-audio-band-playing-wit...

dceddia
Very awesome! Interestingly, in both Chrome and Firefox, the song stops playing ("mostly") if you switch to a different tab. I say "mostly" because Chrome seems to play a single note every 10-20 seconds even with the tab backgrounded.
nbody
Yeap, both setTimeout and setInterval are being sacrificed for performance. Alternatively you could use WebWorkers to offload the timers for precision.
neovive
I remember making these kinds of songs in BASIC. Very fun!
filipedeschamps
I remember in PASCAL with the sound() function:

  sound(100);
  delay(3000);
  nosound;
Sonata
very nice, although the text shadow on the code makes it a bit hard to read
sredmond
I would love to see a MIDI interpreter for something like this. MIDI is already a series of note events (among other weird things like pitchbend and sustain, so it couldn't be too hard.
jastanton
If play returned a reference to the play function you could chain them like

    .play('D#5', 1/4)('E5', 1/4)
Just a thought on cleaning up the syntax a bit.
nacs
A cleaner way may be to allow the play() method to accept a plain JS array of notes:

  var notes = ['D#5', 1/4, 'E5', 1/4];
             or
  var notes = [['D#5', 1/4], ['E5', 1/4]];

  beeplay().play(notes);
watilde
I plan to do it! A 'toJSON()' method is only for that.