 Steve Winwood started his musical career with the Spencer Davis Group playing guitar and piano, but he switched to Hammond when he hired one to record "Gimme Some Lovin'".Gregg Allman became interested in the Hammond after Mike Finnigan had introduced him to Jimmy Smith's music, and started to write material with it.His brother Duane specifically requested he play the instrument when forming the Allman Brothers Band, and he was presented with a brand new B-3 and Leslie 122RV upon joining.