[Candyman]

I assume you have tune building software and intend to put a track together? If i assume correctly there are a few options here. 1st you could try to snip out a bar of just bass from an exsisting tune and loop it, or better still you take tiny snips of just the bass and snare notes then arrange them into your own bass loop But don't thank me 4 that last tip coz it was DJ Monty that told me how to do that a while ago

Hope this helps