Dennis D T Thomas
Biography
Dennis "Dee Tee" Ronald Thomas (February 9, 1951 – August 7, 2021) was an American alto saxophone player, flautist, and percussionist, who was a founding member of R&B/soul/funk band Kool & the Gang, and one of the few members to remain with the band for over 50 years, from its foundation in 1964 until his death in 2021.
Bio from Wikipedia