Any other way to find an instrumental?

Hey, hows it going? (first post! :D)

I'm looking for an instrumental version of a specific track I want to work with (Life Round Here - James Blake), I couldn't find one already out there, and when I tried to create one using audacity, it didn't really work very well (left some vocals, dropped volume in sections, sounded tinny).

Just wondering if there is a site or community out there that people use for this sort of thing? or that has a load of tracks already there.

Thanks in advance