Mark Castellano is a guitarist, jazz pianist, composer and music teacher, and is currently the organ player for the Colorado Avalanche. His composition work includes film scoring "Dinosaurs Take Flight," a touring dinosaur exhibit created by Nick and Alana Register, and composing/music directing an annual melodrama in Silver Plume, Colorado with folk legend George Downing. He also co-wrote a musical with Stephen Bailey that was performed in 2011. As a performer, Mark performs Gypsy Jazz with Sam Cole and Deja Swing. He has provided music for high-end events across the state, including the Plain and Fancy Ball at Invesco Field. He has been the accompanist for the vocal jazz ensemble at Metropolitan State University, the harpsichordist for the Metropolitan State University early music ensemble, and the jazz pianist for the Metropolitan State University big band. He's also worked as a session player on many recordings, and studio guitarist for PBS.