// but it's not uncommon that we'd want one button per bus to switch banks.
// E.g., if the user binds the “mute” button to “next bank”, they'd want every
// mute button on the mixer to do that, so they need one mapping per bus.
// but it's not uncommon that we'd want one button per bus to switch banks.
// E.g., if the user binds the “mute” button to “next bank”, they'd want every
// mute button on the mixer to do that, so they need one mapping per bus.