Scales and Arpeggios for Trombone & Bass Trombone, Grades 6-8, from 2023。售價 HK$85，可預訂。Bass/Treble Clef Edition This book contains all the scales and arpeggios required for ABRSM’s Trombone & Bass Trombone exams at Grades 6–8. It features all the new requirements from 2023, arranged in grade order. AB…