That sounds good, Herb. That BIAB combination works really well - the way the bluegrass styles work so nicely...

There is an odd mandolin note around :37 - you might want to regen that area. When the piano is soloing, the mandolin strums sound centered - consider swapping that - have the mandolin "step to the side" a bit, let the piano be center stage. Also when the mandolin is soloing - have the strum off to the side some (they both sound centered).

The levels are all very good. And the feel of the composition is quite "happy". A good listen.

fj