audio file alignment

[craigsapp]

Allow for embedding a URL for an audio file to sync with notation. There would also have to be a timemap linking the audio timings to the qstamps of the score.

Also allow for multiple recordings (and multiple timemaps). Detection of multiple audio files/timemaps could trigger display of a menu to choose which recording to play (such as a list of different performers).

The timemaps could also be embedded in the Humdrum file as **time spines.

The Tasso in Music Project website already has a hardwired version of this. For example:
http://www.tassomusic.org/work/?id=Trm0047m

When playing the score, the audio and timemap are pulled from the data server that the score comes from.

Score:
http://josquin.stanford.edu/cgi-bin/tasso?a=humdrum&f=Trm0047m
Timemap:
http://josquin.stanford.edu/cgi-bin/tasso?a=timemap&f=Trm0047m
Audio:
http://josquin.stanford.edu/cgi-bin/tasso?a=mp3&f=Trm0047m

The recording is synthetic (generated from a MIDI file), and the timemap is also generated automatically from the MIDI file.