claim: Species distribution can be understood through factors like glaciation.
evidence: Gary Burton -LRB- born January 23 , 1943 -RRB- is an American jazz vibraphonist , composer and jazz educator .. composer. composer. educator. educator. American. United States. jazz. jazz. vibraphonist. vibraphone. Burton developed a pianistic style of four-mallet technique as an alternative to the prevailing two-mallet technique .. This approach caused him to be heralded as an innovator and his sound and technique are widely imitated .. He is also known for pioneering fusion jazz and popularizing the duet format in jazz , as well as being a major figure in music education from his 30 years at the Berklee College of Music .. jazz. jazz. fusion jazz. fusion jazz. Berklee College of Music. Berklee College of Music