Jack began his career in music as a folk musician and songwriter. He traveled to England and played in multiple different bands before moving to New York. In New York, he attended the Institute of Audio Research, and was a member of the first graduating class! His first professional gig was as a janitor at the Record Plant in New York. From this position, he worked his way up to the desk as an engineer and participated in projects by Miles Davis, The James Gang, Alice Cooper, and Cheap Trick. He later became a staff engineer at Record Plant in New York City, where Jack worked with countless incredible artists, including Patti Smith, Blue Öyster Cult, The New York Dolls, Aerosmith, and John Lennon.