MARC GELFO is the founder and CEO of Modacity, a rehearsal environment for your mobile device.

Marc has been practicing music for 30+ years. After applying cognitive science and computer science to French horn, Marc became an internationally touring symphony musician. His experience includes teaching and performing with thousands of musicians around the world, including the San Francisco Symphony. Modacity is a direct expression of Marc’s dedication to integrating science, music, wellness, and technology through meaningful and large scale collaborations.

Listeners of The A440 Podcast can get a lifetime subscription to Modacity for the incredibly generous rate of $115!