Tony studied with such musical luminaries as Donald Byrd, Ernie Watts and Billy pierce, gaining invaluable experience that he then put to best use when back in the UK. Tony was also part of the UK's premier jazz group of the time - The Jazz Warriors. This band was (and, indeed, is, in its current form of Tomorrow's Warriors) a hotbed of young talent from the UK jazz scene. Tony was a vital part of the experience, his solos and ensemble work contributing massively to the success of this band.

Tony was busy throughout the 1990s, appearing in the front line of innumerable high-profile bands, including Billy Higgins, Branford Marsalis, Byron Wallen's Indigo, Claude Deppa's A.J.E. & Horns Unlimited, Cheikh Tidiane Fall, Clifford Jarvis, Courtney Pine, Digable Planets, Donald Byrd, Dr Lonnie Smith, Eddie Henderson, Gary Crosby's Nu-Troop, Jean Toussaint big band, Julian Arguelles, Julian Joseph big band, Jazz Jamaica all stars and many others.

Since 2000, Tony Kofi, Jonathan Gee, Ben Hazleton & Winston Clifford, with featured artist, Orphy Robinson (Vibes & Marimba) have been building their repertoire of Thelonious Monk compositions, all 70 of which were performed in a groundbreaking marathon 6 hour set at the 2003 London Jazz festival, as well as touring Europe and the far east festivals. The quartet's album, 'All is Know' (Specific Jazz), features a selection of Monk originals including string arrangements by composer Philip Clark. The group's CD has just picked up two awards for Best Ensemble & Best Album.