Though he is adept at several instruments, he primarily played keyboards and provided back up and lead vocals.

In addition to keyboard, he also played a multitude of other instruments such as the cello, recorder, guitar, and classical percussion (including vibraphone, marimba, xylophone, timpani and snare drum).

He also composed the original musical soundtrack for the 1996 video game Azrael's Tear along with Ray Shulman.

In the years following the dissolution of Gentle Giant, Minnear was a member of a Christian music band, The Reapers, in the 1980s.

He also played occasionally with the group Three Friends, which reproduced Gentle Giant songs in concert.