that makes sense, it’s kind of how notes are entered into the levels app anyway, right? initially chromatic, turn encoder, press button to select specific note, which could then be fully lit.
in fact, to make it even easier when dealing with all those small LEDs on one ring, display only one octave of notes at a time, but select different octaves using a second encoder, which can show a small chunk of range all around the encoder at various intervals to indicate higher or lower octaves
similar to the Cycles display of ratio 16x, 1/2x, etc.