Hezekiah Leroy Gordon Smith (14th September 1909-25th September 1967), better known as Stuff Smith, was an American jazz violinist.

Smith was, along with Stéphane Grappelli and Joe Venuti, one of jazz music's preeminent violinists of the swing era. He was born in Portsmouth, Ohio in 1909 and studied violin with his father. Smith cited Louis Armstrong as his primary influence and inspiration to play jazz, and like Armstrong, was a vocalist as well as instrumentalist. In the 1920s he played in Texas as a member of Alphonse Trent's band. After moving to New York he had a regular gig with his sextet at the Onyx Club starting in 1935 and also performed with Coleman Hawkins as well as with younger musicians such as Charlie Parker and Dizzy Gillespie, and later, Sun Ra. Smith was critical of the bebop movement, although his own style represented a transition between swing and bebop. He is credited as being the first violinist to use electric amplification techniques on a violin. He contributed to the song "It's Wonderful" (1938), often performed by Louis Armstrong and Ella Fitzgerald throughout their careers. Smith moved to Copenhagen in 1965, performed actively in Europe, and died in Munich in 1967.

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