Here we have a few free learning links to aid your quest to be a better musician  

You can download your backing track for practice at a speed of your choosing... if you can please make a small donation... The work Simon has put into this site is staggering

https://www.fbbts.com/Home.html

Lyric & Song clips - Bluegrass and Oldtime

https://www.toneway.com/songs

A great catalogue of tunes and info

https//www.kimandmikeontheroad.com/music.htm

A great free learning site with video and tab for all instruments..

http://www.bluegrasscollege.org