As a guitarist, Jim has studied with Lou Ubriaco and Wayne Krantz.  Recently, he's been seen and heard performing with Urban Fetch, Dave Pettigrew, Jonny Hirsch, Dave Bickler (Survivor), Bees Kneez, and Sly Tremendo, and is currently performing with The Dukes of Surf, Tahiti Rey, The Bentos and many others.  Jim has recorded in the studio for American Idol alums Will Makar and Ayla Brown, and has had guest appearances live with jambands The Breakfast, and Schleigho. 

In 2004, Cobb joined up with Wildvine Music, a commercial music house in New York.   During his time at Wildvine, Cobb played electric and acoustic guitar on countless television and radio commercials.  Jim played alongside many renowned session players, such as Buddy Williams, Charley Drayton, Tony Tino, Will Lee, Babi Floyd, Ed Walsh, David Horowitz, Jack Cavari, Lou Marini, Jon Cobert, and many others.  Jim’s contributions at Wildvine, however, weren’t just limited to one side of the glass.  Cobb excels as an engineer as well as a player.  At Wildvine, he tracked in various situations from simple voiceovers to rock, pop, & jazz ensembles, to full orchestras, and he's just as comfortable mixing these types of projects as he is tracking them.  He also gained experience and fluency in the video world as well, producing show reels, editing video, and authoring DVDs.

Wildvine disbanded in 2009, and since that time, Jim has continued to engineer and edit on a freelance basis.  Recently, he's produced three EPs for heavy rock band Days of Season, mixed “Live As Is” - a live record by The Breakfast, and built DVD menus for “La Cantadora: Totó La Momposina in Concert” - a concert DVD by Drumgirl Productions.  After Wildvine, Cobb also added “teacher” to his growing list of titles, specializing in teaching guitar, bass, drums, music theory, and rock workshops. He has taught for several prestigious music schools including the Fraioli School of Music in Greenwich, CT, and Music in Chappaqua in Chappaqua, NY.  He currently teaches privately in Honolulu, HI.