Genus has performed as a session musician and sideman throughout his career, having worked with an extensive list of artists.

He studied at Virginia Commonwealth University from 1983 to 1987 and played for a summer at Busch Gardens Williamsburg.

He has played with Out of the Blue (1988–89), Horace Silver (1989), Roy Haynes and Don Pullen (1989–91), Nat Adderley (1990), Greg Osby and New York Voices (1990–91), Jon Faddis (1991), T.S.

Monk (1991), Benny Golson (1991), Dave Kikoski (1991), Bob Berg (1991–96), Geoffrey Keezer (1992), Lee Konitz (1992), Michael Brecker (1992–96), Bob James (since 1994), Michel Camilo (since 1995), Elysian Fields (since 1995), Branford Marsalis (1996), Chick Corea (1996), Didier Lockwood (1996), Dave Douglas (1996), Uri Caine (1997), Global Theory (1997), Ravi Coltrane (2000), Bill Evans (2005), Herbie Hancock (2008), and Daft Punk (2013).

With Nat Adderley With Greg Osby With The Brecker Brothers With Gary Burton With Uri Caine With James Carter With Dave Douglas With Benny Golson With Alex Han With Lee Konitz With Geoff Keezer With Pat Martino With Steve Masakowski With T. S. Monk With Don Pullen With Daft Punk With James Williams