21st Century (2014). Composer James Grant says, "Waltz for Betz is, as one might assume, a waltz dedicated to someone named Betz. Originally composed for piano solo as a musical Valentine's Day card to fine-art photographer Elizabeth Siegfried, it is a gentle, passionate ballad -- Satie by way of Mancini. It now exists in multiple versions, each featuring an orchestral or band instrument in the solo role. There are four accompaniments available: piano, string quartet, string quintet, and string orchestra." -the publisher