Sandman is one of three winners out of Distorted Music (Distorted Humor), a winner of three races, who is also the dam of She Can't Sing (Bernardini), a Grade 3 winner. His once-raced half-sister Blameitonthemusic (Blame) is the dam of the Listed-placed Curahee (War Of Will).

Second dam Music Room (Unbridled's Song) was unraced and bred Zinzay (Smart Strike), Grade 3-placed and dam of Moon Over Miami, a Listed winner who was Grade 1-placed. She is also the second dam of the Listed winner Whiskey Decision (Into Mischief).

Third dam Note Musicale (Sadler's Wells) was unraced and produced Musical Chimes (In Excess), winner of the Gr.1 Poule d'Essai des Pouliches and the Grade 1 John C Mabee Handicap, and Music Note (A.P. Indy), winner of the Grade 1 Gazelle Stakes. Music Note is the dam of Mystic Guide, winner of the Gr.1 Dubai World Cup, and Gershwin, who took the Grade 3 Penn Mile Stakes.

Distorted Music has a two-year-old colt by Into Mischief.