@Matt: key was C major. It’s the reason why people say their song sounds lydian all of a sudden. They have a song in Bb, but have accidentally left the key signature in F for easier reading or they forgot to change it.

But, you know why I don’t like the idea of key. I had a stand in bass player who didn’t know the changes to All the things you are. He asked what key it was in. A good time was had by all. (Not knowing the changes to ATTYA is no biggie, but we did have a great time laughing. It made for “great” variations on the theme: what key is Giant Steps in? And What key is the bridge to Have You Met Miss Jones in)

What is the key for a Kenny Wheeler tune, Wayne Shorter, Joshua Redman, Beatrice (Sam Rivers’ wonderful tune)? That is the reason I dislike the reasoning behind BiaB’s harmony.

In realtracks it is possible, but you would have to record every possible chord. And the results show that the bassline is often not in line with the piano or guitar. The harmony is all over the place in most styles.

Jjazzlab and Yamaha midi styles stick to the harmony better, but the way midi styles are organized in BiaB is better (random choice of 2 bar, 1 bar, half a bar… patterns). It offers a lot more variation. Three choruses of BiaB with all its’ harmonic shortcomings, still beats one chorus of repetitive Yamaha styles. (The same patterns repeat every four or eight bars in Yamaha styles)

Works for most pop and most standards, though.

Biab, Kontakt, Sampletank and lots of nice libraries, from Fluffy audio to Abbey Road drums.
Check out these great contemporary Jazz Styles: www.jazzstylezz.com