Based on Afrobeat, Dele's music is a blend of complex funk grooves, Nigerian traditional music, African percussion, underpinning the jazz horns and solos from other instruments, as well as rhythmical singing.

Following his first solo album Turbulent Times,[3] he was invited to select the tracks for the 3-CD compilation "Essential Afrobeat" (Universal, 2004).

His album Identity[7][8] has been described by Songlines magazine as “A sizzling set from London’s Afrobeat leader”.

[10] In November 2010, Sosimi was appointed Afrobeat music consultant for the London production of Fela!

The core group of Sosimi's musicians is Femi Elias (bass), Kunle Olofinjana (drums), Phil Dawson (rhythm guitar), Maurizio Ravalico (percussion), Justin Thurgur (trombone), Tom Allan (trumpet) and Eric Rohner (tenor saxophone).