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Bibliography

"Plunger Techniques : The Al Grey Plunger Method for Trombone and Trumpet." (Musical Score, 1987) [WorldCat.org]. N.p., n.d. Web. 22 Apr. 2016.

"Biography." Spotify. N.p., n.d. Web. 22 Apr. 2016.

"Al Grey." Wikipedia. Wikimedia Foundation, n.d. Web. 22 Apr. 2016.

"Extended Biography." Al Grey Biography. N.p., n.d. Web. 22 Apr. 2016.