Can you play happy birthday on the tuba?

Yes, you can play Happy Birthday on a tuba. Here are the note names and fingerings for the melody in the key of C major:

B flat (open)

A (1)

G (2)

F (1, 2)

E flat (3)

D (1, 3)

C (2, 3)

B flat (open)

A (1)

G (2)

F (1, 2)

E flat (3)

D (1, 3)

E flat (3)

To play the notes, simply press the corresponding valve(s) and blow into the mouthpiece. The tuba is a transposing instrument, so the notes you play will sound an octave lower than written.