downloads scales trombone/euphonium semester 1: major scales semester 2: natural minor scales semester 3: harmonic minor scales semester 4: melodic minor scales bass trombone semester 1: major scales semester 2: natural minor scales semester 3: harmonic minor scales semester 4: melodic minor scales tuba semester 1: major scales semester 2: natural minor scales semester 3: harmonic minor scales semester 4: melodic minor scales skills assessment rubric skills assessment rubric