<https://www.concertina.net/forums/index.php?/topic/21213-new-to-concertina/#comment-197092>
<http://schema.org/text>
"Ted, I agree with what you're saying completely, but for the sake of the original poster, I'd posit that the outer row only seems more random. It makes pretty good sense from the point of view of being a set of useful \"extras\" added on to the core 20-button instrument to try to make more sophisticated musical effects (like \"playing in the key of D\" ? ) possible. I haven't played with a 40-button Anglo, but I suspect it's the same kind of deal: more bells and whistles for the \"advanced\" player who wants to get beyond what's \"easy\".\n \n"
<https://www.concertina.net/forums/index.php?/topic/21213-new-to-concertina/&tab=comments#comment-204116>