I’d never even heard of a bandoneón before last Thursday.
There was a performance of the guitar class at the kids’ school and after they were done the two teachers played for us all. It was great. The woman on the right playing the bandoneón is Argentinian and has been in Barcelona for 3 months. She’s been learning the bandoneón for 5 years and playing guitar “all my life”. As for the bandoneón, it looks good, sounds good, and doesn’t sound easy to learn. Here’s an excerpt from the Wikipedia page linked above:
Unlike the piano accordion, the bandoneón does not have keyboards per se, but has buttons on both sides; and also unlike most accordions, most buttons on the bandoneón produce a different note when played closing than when played opening. This means that each keyboard has actually two layouts – one for the opening notes, and one for the closing notes. Since the right and left hand keyboards are also different, this adds up to four different keyboard layouts that must be learned in order to play the instrument.
Check it out: