[chrismeyers]

waveforms are the first, most obvious choice http://www.bing.com/images/search?q=Waveform&FORM=HDRSC2

[coolbrow]

I thought the same thing! I will probably do something like this, I was hoping to find a js library that would make waveforms from an audio file. I couldn't find something exactly like I wanted so I will probably end up writing my own.