He is the author of the one-act plays, Dial L for Latch-Key and Leading the Witness, published by Hen House Press.
His short story in paperback and ebook form, Johnny Passe, also appears in the anthology, Fiction Noir, both published by Hen House Press.
Near Myth: The Oskar Knight Story features an ensemble cast including Margaret O'Brien, Joaquim de Almeida, Julianna Guill, Kristina Anapau, and many other stars who share their memories and feelings about the legendary director.
Fivelson's short story, "A Farewell to Legs" —Hemingway-esque prose about a jogger in a marathon across Africa — has also been published as an audiobook by Blackstone Audio.
His songs include “Secret Entrance to Your Heart” by Breeze BossaNova, “What the Piano Knows” by Dave Corwin and Catherine Ashcroft, and the jazz album Awesome in New York, featuring Mishka Spiro and Zane Musa.