A traditional trombone features a slide which the player adjusts to adjust the pitch of the note, and in combination with pitching the original note on the mouthpiece, can create a wide range of notes.

There are 7 positions on a slide, and let's say are range of 6 notes per position, gives me 42 potential notes to recreate.

To select the note range I will use momentary switches, operated by the players left hand. They will need to be ergonomically placed to allow comfortable use while supporting the instrument weight.

So far either using slide potentiometers or even ultrasonic sensors could be used to capture the slide movement.