Drawing the Waveform

[emaruffi]

I plan to use Subsonic as a music library server, where the users scan through pieces to find the material they are looking for. Music library web sites usually show a waveform where the user can see the various clips and transients in the music and quickly click and audition them.
(Example http://www.audionetwork.com/production- ... 68379.aspx and then play any of the files)

The first goal would be to see a waveform, the second to be able to click on it to audition the exact spot needed.

These would be great features for my purposes, thanks.

Emanuele