A second technician gauges Werner's eye color against a chromatic scale on which sixty or so shades of blue are displayed.†
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Anthony Doerr, All the Light We Cannot See, 2014
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He swallowed hard, drew a breath and made another attempt, producing this time a roll call on a rising chromatic scale.†
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Ian McEwan, Atonement, 2001
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But suddenly a storm came on, chromatic scales and diminished sevenths were heard in the orchestra, everyone ran off, again dragging one of their number away, and the curtain dropped.†
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Leo Tolstoy, War and Peace, 1869