<https://www.concertina.net/forums/index.php?/topic/25517-duet-playing-practice-question/#comment-223094>
<http://schema.org/text>
"I have not tried it, but have wondered about partially taping over the pad holes of too loud reeds.\n \n\n\n\t \n \n\n\n\tAlso, elsewhere here there have been suggestions to use thicker valves.\n \n"
<https://www.concertina.net/forums/index.php?/topic/25517-duet-playing-practice-question/#comment-223015>