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run the gamut

run the gamut idiom

Extend over an entire range, as in His music runs the gamut from rock to classical. This expression alludes to the medieval musical scale of Guido d'Arezzo, gamut being a contraction of gamma and ut, the lowest and highest notes respectively. [Mid-1800s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.