Jay has arranged a wide repertoire of music for trombone choir. Most arrangements are for 12 trombones. He worked with Noah Gladstone to produce a CD of professionals performing the following titles. Both the CD and sheet music are available from the Brass Ark.

• Richard Strauss: Traumerei am Kamin
• Antonin Dvorak: Slavonic Dance, Op 72 No. 8
• Sergei Prokofiev: Four movements from Alexander Nevsky
  • “Russia Under the Mongolian Yoke”
  • “Song about Alexander Nevsky”
  • “The Crusaders in Pskov”
  • “Field of the Dead”
• Richard Wagner: Bass Trombone Study from Lohengrin
• Richard Wagner: Study from Gotterdammerung
• Gustav Mahler: Chorale Study from Symphony No. 6
• Antonin Dvorak: Symphony No. 6, movement 1

Additionally, the following titles are available from Kagarice Brass Editions:

• Amazing Grace
• Dvorák: Symphony no. 6, mvt 1
• Holst: The Perfect Fool
• Mahler: Solo from Symphony no. 3 (for solo trombone and 11 trombones)
• Mendelssohn: Scherzo from Symphony no. 5
• Mendelssohn: Andante & Chorale from Symphony no. 5
• Schumann: Scherzo from Symphony no. 3
• Sibelius: En Saga (for 8 trombones)
• Sibelius: Swan of Tuonela (for solo trombone and 12 trombones)
• Wagner: Prelude from Die Meistersingers, Act III (for 4 trombones)
• Wagner: Synthesis of Die Walküre (for 8 trombones)