I am new to the forum and would like some advice before purchasing BIAB.
Let me tell you who I am and what I want to do.
I play Old Time and Bluegrass fiddle and would like to use BIAB as a back up to my melody using guitar, mandolin, banjo and bass.
I think I can construct the chord and timing backup from the limited information I have on BIAB. Alternatively I know a couple of websites that appear to have many standard Bluegrass/Old Time backup files. I can't vouch for their quality as I haven't purchased BIAB yet.
If I do it myself, I assume I simply construct the back-up (chords, timing etc) and press the Enter key, and I can practice for ever?

If I purchase tomorrow, I assume I would buy 2009.5.

* Will BIAB do what I want (as above)?
* What benefits do Real Tracks 11, 12 and 33 (Bluegrass) provide that are not in 2009.5?

Any other advice for a BIAB novice would be most welcome.

Thank you.

Harry