Alto Saxophone Solo - Level 4 - Digital Download SKU: A0.688944 By Usher & Alicia Keys. By Alicia Keys, Barry White, Jermaine Dupri, Manuel Seal, Taurian Shropshire, and Usher Raymond. Arranged by Fabio Britto. Contemporary,Hip-Hop,Pop,R & B,Wedding. Individual part. 1 pages. Minhas Partituras #6664095. Published by Minhas Partituras (A0.688944). Arrangement of the song My Boo (Usher & Alicia Keys) for Alto Saxophone Solo with Chords.