Received: 13 July 2020
Accepted: 23 September 2020
First Online: 10 October 2020
Ethics approval and consent to participate
: This work was a systematic review, so ethics approval and consent to participate are not applicable.
: This work was a systematic review, so consent for publication is not applicable.
: SMB is an Assistant Musical Director for the Include Choir in a paid capacity. SMB and MSB are both experienced recreational musicians and choir leaders, and have been involved in promoting the performing arts to the public and student groups. Expenses but not payment were received for this.