He has won Grammy Awards for two of his comedy albums and for best country instrumental performance.

VOA: special.2009.07.17

They include best rock instrumental and best contemporary jazz recording.

VOA: special.2010.03.12

Several Bluegrass and Americana performers are in the race for Best Country Instrumental Performance beside the Steve Wariner song "Producer's Medley."

VOA: standard.2010.01.24

(VOICE) In June,Harper taught his last class in instrumental music in the school district of Yonkers, a suburb north of New York City.

VOA: standard.2010.08.11

"I'd have to say my mother was one of the most instrumental people in my life."

VOA: standard.2010.03.29

Americans Venkatraman Ramakrishnan and Thomas Steitz and Ada Yonath from Israel were all instrumental in showing how proteins are made at the atomic level.

VOA: standard.2009.10.07

That was a mistake," The doomsday prediction on the Himalayan glaciers was part of a larger report which has been instrumental in shaping the global debate on climate change.

VOA: standard.2010.01.23