<https://www.concertina.net/forums/index.php?/topic/25517-duet-playing-practice-question/#comment-223004>
<http://schema.org/text>
"That’s really the only way to do it. The reeds on the lower notes are bigger and therefore louder. Since you can’t send less air pressure to them, the only way to decrease the amount of air flowing through them is to shorten the amount of time their pads are open. It makes good musical sense, too.\n \n"
<https://www.concertina.net/forums/index.php?/topic/25517-duet-playing-practice-question/#comment-223015>