 He also contributed his poignant dulcimer-centered version of "The Crucifixion" to 2001's multi-artist double-disc tribute to Phil Ochs, "What's That I Hear".In addition to his skills as a singer-songwriter, guitarist, and both virtuoso and educator on the appalachian dulcimer, he is also a prolific author-illustrator of pocket-sized children's books and has performed and recorded children's music.Massengill toured frequently with long-time friend and fellow songwriter Jack Hardy as a duo called the Folk Brothers, until Hardy's death in 2011.