Thomas Lang recorded three tracks for the website Play Along Jazz (playalongjazz.com). Great stuff, because you can download (quite cheap) play alongs of the tracks he recorded. You can find more artists there as well: Steve Smith, Joel Rosenblatt and Russ Miller all contributed with very interesting downloads. Thomas his compositions are written and arranged by guitarist Vinny Valentino (Richard Bona, George Benson a.o.) specifically for Thomas Lang and exclusively for playalongjazz.com.
Thomas Lang's tracks on PlayAlongJazz.com are:
Color Funk
Pinch Me
The Druminator
All are available in several packages:
Thomas Lang Minus Drums
Thomas Lang As Recorded
Thomas Lang Minus Bass
Thomas Lang Minus Guitar
Thomas Lang Minus Keys
As said, there is more. Here are the links to Steve Smith, Joel Rosenblatt, Russ Miller and Thomas' download pages. There is some incredible and exclusive stuff to find. Even Russ Miller's Rhythmic Conversations with Steve Smith and Pete Lockett - without drums!