Warp refraction, also known as the warp refraction principle, is a term coined by the guitarist
Jon Finn in his 1999 publication, ''
Advanced Modern Rock Guitar Improvisation''. Warp refraction takes into account the
major third
In classical music, a third is a musical interval encompassing three staff positions (see Interval number for more details), and the major third () is a third spanning four semitones. Forte, Allen (1979). ''Tonal Harmony in Concept and P ...
tuning interval between the second and third strings in the
standard guitar tuning. Warp refraction is the inconsistent tuning anomaly which occurs on the second and third strings of the six-string guitar. All of the other strings have a fourth interval relationship and are tuned as such.
Musical performance techniques
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