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Floor Stand
The instrument can be placed on a floor stand which allows it to be played without using a second hand to support it.
Left-Handed Playing
If the left-hand is required to operate the valves then the lead pipe can be moved around the other side of the instrument. This results in a permanent change to the instrument.
Fourth valve extension
When playing a tuba with a fourth valve, this extension enables the little finger to play the fourth valve so that all four valves can be played with the same hand. Alternatively, use a model with four valves in a line.
Foot/Knee Operated Tuba
Frog and Henry have developed a tuba operated by foot and knee.