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1881 J. Broadhouse Student's Helmholtz 354 Mean tone temperament was perfected by Salinas, a.d. 1577.

1884 J. Lecky in G. Grove Dict. Music IV. 72 It will be convenient to take equal temperament as the standard of comparison, and to measure the meantone intervals by the number of equal Semitones they contain... In the meantone system the interval G♯—E♭ is sharper than the perfect Fifth by nearly one-third of a Semitone.

1896 A. J. Hipkins Descr. & Hist. Pianoforte 103 To extend Mesotonic or Mean tone tuning to the keys of E flat and A flat major.

1948 Amer. Math. Monthly 55 546 The meantone temperament is a regular system in which the fifth (3/2) is flatted by 1/4 syntonic comma, and the major third is pure (5/4).

1979 Early Music 7 493/1 Furthermore, late renaissance and early baroque music originally associated with mean-tone systems is often quite effective (albeit anachronistic) in well-tempered tuning, because the keys most commonly used have what amounts to mean-tone-variant intonation anyway.

1989 E. M. Ripin et al. Early Keyboard Instruments App. 245 A mean-tone temperament in its most restricted sense refers to a tuning with pure major 3rds divided into two equal whole tones (hence ‘mean’-tone).