<https://www.concertina.net/forums/index.php?/topic/25517-duet-playing-practice-question/#comment-223124>
<http://schema.org/text>
"I would encourage you to listen to the recordings at http://www.concertinas.org.uk/DuetAudio.htm to hear how various players have handled this.\n \n"
<https://www.concertina.net/forums/index.php?/topic/25517-duet-playing-practice-question/#comment-223015>