I can't believe after all these years I just stumbled upon this site in a minute! Tons of BIAB and MIDI files (64,000)!
I use BIAB as a sketch pad to put together a quick trio and print out lead sheets to practice with. Having access to these files is great. I wish I knew the FTP password as loading some the BIAB files are onesies. It would be great to grab the whole site in one shot. The Jazz stuff is in a big RAR file, tho'.
BIAB is quirky and the interface hasn't changed forever. It only works well at 44Khz, at 48 it mangles the tuning on samples to unusable but some of the features are very useful.
http://bhs.minor9.com/
Motherlode of MIDI Files
Motherlode of MIDI Files
"I’ve come to the conclusion that synths are like potatoes, they’re no good raw—you’ve got to cook ‘em, and I cooked these sounds for months before I got them to the point where they sounded musical to me." Lyle Mays