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Get 2D Trombone Notes Slide old version APK for Android
2D Tenor Trombone Positions Slide Chart - How To Play Trombone Fingering
This application shows you the position of the fingers on the instrument. You can hear the sound of each musical note. There is a diagram of the finger positions and a demonstration by a live trombonist. There is a section with Tenor Trombone lessons.