Like Jsaah says, there's alot out there. Nude Bass Ascending is one of Glen Moore's best. The Marks Brothers, (Mark Dresser and Mark Helias) went out of print, but is worth paying a little extra if you can find it. Good For Cows/Less Than Or Equal To, is great (acoustic bass and drums duo). Beirach-Huebner-Mraz/Round About Monteverdi. This is the best recorded George Mraz i've heard so far.