How do you play g sharp on euphonium?

1. Use your left hand to press down the first valve. This will lower the pitch of the B flat note by a half step, resulting in a G sharp note.

2. Use your right hand to press down the third valve. This will lower the pitch of the G note by a half step, resulting in a F sharp note.

3. Press both valves down at the same time. This will lower the pitch of the F sharp note by a half step, resulting in a G sharp note.

Here are some additional tips for playing G sharp on euphonium:

* Make sure that you are pressing down the valves firmly and evenly. If you do not press down the valves firmly enough, the note will not be in tune.

* Experiment with different combinations of valves and fingerings to find the one that produces the best sound and intonation for you.

* Practice playing G sharp regularly so that you can become more comfortable with the fingering and sound of the note.