ماخذ: Sing It First. Perfect for classical and jazz trombonists, it is compiled and edited by trombonist Alan Raph. Trombone sheet music.
ترجمه: بخوان نخست. صفحه موسیقی ترومبون. بخوان نخست. Wycliffe Gordon's Unique Approach To Trombone Playing. Composed by Wycliffe Gordon. کتاب.