BB♭ Sousaphone
G♭2 on the BB♭ Sousaphone
Written G♭2. Tap the diagram to hear it.
G♭2
4th partialBeginner note
G♭2 is the 4th partial with valves 2 and 3, 4 semitones below open B♭2. With valves 2 and 3 down the tuning is honest, which makes it a useful note to tune against. This is the sousaphone's most comfortable range — where most marching parts live.
About this note
G♭2 is the 4th partial with valves 2 and 3, 4 semitones below open B♭2. With valves 2 and 3 down the tuning is honest, which makes it a useful note to tune against. This is the sousaphone's most comfortable range — where most marching parts live.
- Primary fingering: Valves 2 + 3
- Written pitch: G♭2
- Sounding frequency: 92.50 Hz
- Harmonic partial: 4 — the valves set the tube length, but your air and embouchure select the partial.
BB♭ Sousaphone fingering data last updated . Every diagram here, in the printable PDF and in the chart image comes from one dataset, so the paper and the screen cannot disagree.