Lorenzo Tio Jr. (1893–1933) was a master clarinetist from New Orleans, as were his father Lorenzo Tio Sr. (1867–1908) and uncle Louis "Papa" Tio (1862–1922). Their method of playing the instrument (which involved the Albert system, a double-lip embouchure and soft reeds) was seminal in the development of the jazz solo.
The three Tios helped bring classical music theory to the ragtime, blues and jazz musicians of New Orleans; Lorenzo Jr. eventually played jazz himself. Lorenzo Sr. taught "Big Eye" Louis Nelson Delisle. Many reed players significant in early jazz studied with Lorenzo Tio Jr., including Sidney Bechet, Barney Bigard, Johnny Dodds, Omer Simeon, Louis Cottrell, Jr., Jimmie Noone and Albert Nicholas. Tio Jr. taught Bigard what would become the main theme to the famous Ellington tune "Mood Indigo."