Jacob's music credits include serving as the music assistant for the Stars In The Alley Concert (Broadway), music director for Jimmy! (Off-Broadway), music director for Kragtar (NYC workshop), rehearsal pianist for Grease, We Will Rock You, and Mamma Mia (Royal Caribbean), assistant music director/keyboards for Guys and Dolls and Merrily We Roll Along (Boston's Cutler Majestic Theatre), assistant music director/keyboards for The Spitfire Grill (Paramount Theatre Boston), and music producer for Maiden Voyage Comedy's music videos Campus Cash and The Mall Song. Other music directing credits include Cabaret, Seussical, The Little Mermaid, and more. Jacob has been a music teacher for the University of Utah Youth Theatre as well as teaching piano privately.
For SideQuest Productions, Jacob was the composer for InterVallum and Exoskeletal. He also composed the original theme music and directed A Chorus and a Queen.