I spent years with Anglo and reached a pretty good proficiency level, studied it like a maniac with my Irish heroes and played it with bliss in Irish sessions for some time. . . only to start finding it a little limited, and become interested in EC. I've also given Crane a whirl, did not consider Maccann because I didn't want to be bothered with an irregular layout when there are two more consistent, more easily-memorized layout options available (Hayden and Crane).
I liked duet so far as it goes, but . . . somewhat like Geoff, I have found chromatic accordion gives vastly, hugely more scope for the kind of use I contemplated for duet, and am playing CBA for that kind of (two-handed) music. I don't particularly care for the sound of chordal/multi-voiced music on concertina, and am finding concertina most desirable and most useful, for music that is largely melody, like on fiddle, with only light touches of bass or fiddle-type double stops or drones. I'm not saying you can't play chordal music on EC. I'm saying, if you wish to play melody with bass accompaniment or counterpoint, duet or one of the unisonoric accordion systems has more scope. On the other hand, for playing music that is largely melodic, there's no concertina system like the fluidity of the EC.
Edited by ceemonster, 11 September 2017 - 02:32 AM.