If You need a track with a banjo, I'm your man ! Not only bluegrass music but also Irish, folk and even pop.
Sorry, no trash metal

https://soundcloud.com/paul-grymaud/ole-joe-clark
I can give You a perfect synchro audio track (if You give me the audio file of course)
Absolutely free (dough I'm a pro) 'cause I like the idea of exchanges or partnership.