DULUTH — Once a month, typically on a Sunday afternoon, the Friends Meeting House is filled with voices singing together. It's not a performance because everyone present is involved in the singing.

BBC Get Singing launches today on BBC Bitesize, providing teachers and vocal leaders with engaging resources to encourage collective singing among 11–14-year-olds in and out of schools across the UK.

Whether it’s Barbra Streisand’s goosebump-raising 19-second note in “A Piece of the Sky,” or Bill Withers’ iconic 18-second one in “Lovely Day,” the ability to hold a note requires a singer to ...