Thanks, Tony, for the Ludovic video. He is great on his CBA, but I did not expect to hear what the young Hispanic player was doing on a 3 row diatonic accordion. With limited notes (diatonic not chromatic), things can be pretty diffcult to play. That's why they have a number of instruments in different keys much like the diatonic harmonica.

Another thing is that many of the Conjunto musicians play by ear. That might come handy for them when it comes to improvisation.