Tbh I was kind of surprised that it wasn't updated with the rest of the new items getting released. Would be friggin tragic if the cartridge didn't get a fix. Need me sum decent chippy tunes.
PS is there the option to have your saved tunes loop when someone enters your house? If not, why not?
I think there should be more options for playing instruments automatically, whether it be for background music in a house, or for playing songs that are difficult on a keyboard in public as they're intended to sound. This would especially be good for making songs with multiple instruments, because then they could play in sync, forgetting server lag and just general player-to-player timing incoherence.