Yamaha CVP-701 CVP-701 Reference Manual - Page 10

Scale Tuning You can select various scales for playing in custom tunings for specific historical periods or music genres. 1 Call up the operation display. [FUNCTION] → TAB [-][3] MENU1 → [E] MASTER TUNE/SCALE TUNE → TAB [-][3] SCALE TUNE 2 Use the [A]/[B] buttons to select the desired scale. 2 The tuning of each note for the currently selected scale is shown. Voices - Playing the Keyboard -  Preset Scale types EQUAL The pitch range of each octave is divided equally into twelve parts, with each half-step evenly spaced in pitch. This is the most commonly used tuning in music today. PURE MAJOR, PURE These tunings preserve the pure mathematical intervals of each scale, especially MINOR for triad chords (root, third, fifth). You can hear this best in actual vocal harmonies - such as choirs and a cappella singing. PYTHAGOREAN MEAN-TONE This scale was devised by the famous Greek philosopher and is created from a series of perfect fifths, which are collapsed into a single octave. The 3rd in this tuning is slightly unstable, but the 4th and 5th are beautiful and suitable for some leads. This scale was created as an improvement on the Pythagorean scale, by making the major third interval more "in tune." It was especially popular from the 16th century to the 18th century. Handel, among others, used this scale. WERCKMEISTER, KIRNBERGER This composite scale combines the Werckmeister and Kirnberger systems, which were themselves improvements on the mean-tone and Pythagorean scales. The main feature of this scale is that each key has its own unique character. The scale was used extensively during the time of Bach and Beethoven, and even now it is often used when performing period music on the harpsichord. ARABIC1, ARABIC2 Use these tunings when playing Arabic music. 10 CVP-701 Reference Manual