Marx's interest in jazz began in Detroit while he was a young man. From his earliest recollection, jazz was his music of choice. Seeking to learn more, in the '70's Marx made it to Berkeley to study with Hal Stein on the West Coast. In Oakland and San Francisco the Jazz scene was hot and Marx played with greats like Eddie Henderson and Mark Levine.
Once jazz was in his blood, Marx went to New York for 14 years where he played with Reggie Workman, Steve Slagle, Guitarist Kevin McNeil, Donald Byrd, Ed Schuler, Jim Pepper, Gene Jackson, Ira Coleman, Santi DeBriano and Dave Stryker among others. For five years, he co-led in Second Sight with John Esposito, Jeff Siegel and Dave Douglas who was named Downbeat's Musician of the year in 2000.
Increased visibility led him to tour overseas where he played in the Cascais Portugal Jazz Fest and throughout Europe. In addition, Marx played at the Greenwich Jazz Festival and for Columbia College radio in New York. Although sad, he was honored to play for the National Radio memorial program for his former colleague, Jim Pepper.
Since 1993 Chicago has been Marx's home. he played at the Montreux Detroit Jazz Festival in 2002 and 2003. Between Chicago, Detroit, New York, Memphis, Little Rock Arkansas, Milwaukee and Ann Arbor. Jeff has busy playing at notable club's, jazz society's and concert halls.
In 2003 his second cd as a leader Treading Air Breathing Fire on Soluna Records, was widely praised by reviewers. in 2006 Jeff made a duo CD with Jeff Siege Siegel on drums entitled Dreamstuff, which also received much praise. In october 2008 along with Siege Siegel on drums and one of Europe's top bass player/composers Jaromir Honzak, Jeff performed in Germany and the Czech Republic. A live recording of that tour will be released in 2009.