Latest update of 1844 American songbook reflects new generation of 'Sacred Harp' singers

Musicologist Angharad Davis of Australia leads the song she composed for the new edition of The Sacred Harp, "Radiance," in the center of the hollow square.

An 1844 religiously inspired songbook that uses shape notes to help people read music got a major update recently and it attracting younger singers.

(Image credit: Lucy Grindon)