Hank Marr was an American jazz organist known for his soul-jazz style, a fusion of soul and jazz music popular in the 1960s. Born in 1927, Marr gained prominence after signing with King Records and releasing influential works such as “Greasy Spoon” and “The ‘Out’ Crowd”. His work, marked by a distinctive Hammond B3 organ sound, contributed to the popularization and development of the jazz organ genre. Marr’s influence on jazz music is significant, particularly in his innovative use of the organ as a lead instrument.