CPALead integration with music download API

I would like to create a website that makes use of the free music archive's ([login to view URL]) API. I would like to present the music differently than they do - I think their user interface needs a lot of improvement. As a service, this website will provide the music of the FMA on a cleaner, more easily searchable platform. Users will be able download up to 10 tracks or 1 album for free each time they complete 1 survey or offer from CPALead. Users should be able to "bank" their survey completion credits as well if they feel like doing multiple surveys at once, if they create an account.