Playing the 68 Duets from the Arban's Method for Trombone.
In the video after the initial Duet performance, there is an opportunity for you to play along while I fill in the other part. Now there is no excuse for not having duets as a regular part of your routine.
If you so feel inclined, please post a response video playing along with my part. I'd love to see how you use these videos in your practice sessions!