David Grier is an American acoustic guitarist. He is considered to be one of the premier flatpicking guitarists in the world. His unique phrasing and his ability to create multiple variations on a theme are hallmarks of his playing style. He was named "Guitar Player of the Year" by the IBMA three times (1992, 1993 and 1995).

Grier performs solo and as a member of the group Psychograss, founded by Darol Anger and Mike Marshall.

Grier grew up in a very musical household. Grier's father, Lamar, was a banjo player in Bluegrass legend Bill Monroe's band for a number of years. Roland White was a major musical influence on the young Grier, and helped him learn to play. Grier's guitar playing is also heavily influenced by that of the legendary Clarence White, Roland's brother.

Grier owns his father's 1955 Martin D-18. The D-18 was his main guitar for a number of years but is now "retired." He also plays a Nashville Guitar Company dreadnought, built by renowned luthier Marty Lanham in Nashville, TN.

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