Playing a reel and tapping out the tune, and big deep strings of the guitar beating like a heart, and the harmonica's sharp chords and the skirl and squeal of the fiddle.
John Steinbeck. The Grapes of Wrath, p.363 (1939)
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There was a massive shout from the floor below, an outbreak of skirling pipes, and the solemn scene dissolved into a heaving surge of riotous yelling.
Diana Gabaldon. Outlander (1991)
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the two spells skirled discordantly, like strings on a poorly tuned violin.