|Engl.||(Bass) Tuba||Bs. Tb., Tb.||in F|
|Ital.||Tuba (bassa)||Tb. B., Tba., Tb.||in Fa|
|Fr.||Tuba (basse)||Tb.||in Fa|
|Dt.||(Bass)tuba||Btb., BT.||in F|
Music for the bass and contrabass tubas is generally non-transposing and written in bass clef. The instrument is pitched in the bass and contrabass registers.
Notation an octave higher than the actual sound has not found acceptance, even though it is easier to read in parts. The reason for this is that the tuba often doubles the 3rd trombone and shares a staff with it.
In wind bands a bass tuba in Eb is used, the notation for which is subject to national variations:
In Germany, Italy and England the notation is non-transposing in bass clef.
In France, Belgium and the Netherlands it is transposing, with no accidentals, in bass clef (sounds a major sixth lower than written):
In Switzerland transposing, in treble clef, no accidentals. (Sounds one octave and a major sixth lower than written):