Trombones - βTuning Upβ, by Toshiko Akiyoshi, Melody measures 13-25.
At the audition, you can choose to play the excerpts with or without the live rhythm section and it can be played at whatever tempo is comfortable for you.
The Passage begins at 0:30 until 0:47 of the Reference Recording using the link below.
Tuning Up - Reference Recording
Click on the link below to view and download the .pdf of the part. You can choose either the 1st or 4th Trombone part to play.
Improvised Solo Music
Click on the link below to download the .pdf file of the part.
Improvised Solo Backing Tracks -