[raverbashing]

This is interesting

I wonder how the work is split between client/server in (actual) Shazam. (I suppose only the key points are sent to the server, but I may be wrong - Siri for example sends the server a compressed audio file of the recorded sound)

[regularfry]

You can phone Shazam up and have it make the identification using what it hears live. There's no client processing at all for that.