Jack Maeby grew up in upstate New York, where he began playing music professionally while in high school. At age 19, he signed a recording contract with a St. Louis-based record label. After a few years of touring the South and Midwest opening for acts such as The Doobie Brothers, Rod Stewart and Parliament/Funkadelic, Jack returned to Albany to back vocalist David Ward, a veteran of the King Curtis band. Through Ward, he was introduced to the late King Curtis' musical family, which included R&B legends Cornell DuPree, Gordon Edwards and Bernard Purdie.
Moving to New York City in the 1980's, Maeby built a career playing piano and organ behind acts such as Etta James, Otis Rush and Lowell Fulson. He was a keyboardist with the Uptown Horns band, accompanying Aaron Neville, Buster Poindexter and many other name attractions on their New York appearances. Jack was a regular member of NY Jazz and Blues Society honoree Danny Draher's band, played regularly with avant-garde jazz artist Marc Ribot and toured Europe with guitarist Joe Taino.
During his time in New York, Maeby was composer and musical director for a number of Off Broadway theater productions at La Mama Etc., CSC Repertory and the McCarter Theater. He began composing for film and television, garnering a Clio nomination for Original Music Scoring. His motion picture and TV work includes the films Scandal, Disney's The Arabian Night and How the Toys Saved Christmas and the long-running children's series, The World of David the Gnome.