to the tune of

to the tune of idiom
To the sum or extent of, as in They had profits to the tune of about $20 million. This idiom transfers tune, a succession of musical tones, to a succession of figures. [First half of 1700s]

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.

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