Is it possible to re-tune the player? ( to set for the player an arbitrary frequency of the note la?)
Is it possible for the player to set an arbitrary frequency of the note la?
This is necessary since, for all Russian accordions, notes are written in the key of C major. And the accordions themselves are tuned in arbitrary keys. To play the accordion tuned, for example, in G major together with the player, for musical notation written in C major, you need to re-tune the sound of the player.
Is it possible?