Chapter 9—Supplemental Information
ENSONIQ MR-Rack Musician’s Manual 19
Pitch Tables and the MIDI Tuning Standard Format
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Pitch Table Description
EqualTemper The Western 12-tone equal-temperament tuning is used for the default pitch table.
Pythagrn-C Early tuning derived by calculating 12 perfect fifths and adjusting the octaves downward as necessary. Leaves all fifths except the
one between G# and D# very pure. The entire mathematical anomaly encountered by tuning up 12 perfect fifths (called the
Pythagorean comma) is accounted for in the interval between G# and D#.
Just Int-C Designed so that the major intervals in any scale are very pure, especially the third and fifth.
Meantone-C One of the earliest attempts to derive a tuning which would accommodate music played in a variety of keys. The major third
interval is very pure.
Wrkmeistr-C Derived by Andreas Werkmeister, a contemporary of Bach, this is a further attempt to create a temperament which would
accommodate music played in any key.
Vallotti-C A variation of Pythagorean tuning in which the first 6 fifths in the circle of fifths are flat by 1/6 of the Pythagorean Comma. This is
probably close to the tuning used by Bach for his Well-Tempered Clavier.
Grk-Diatonc The basic building block of ancient Greek music (in which most modern Western music has its roots) was the tetra chord - four
notes and three intervals spanning a perfect fourth. The placement of the two inner notes of the tetra chord determined its genus —
diatonic, chromatic or enharmonic. This pitch table is derived from two diatonic tetra chords, combined to form a seven-note scale
similar to the modern diatonic scale. It is to be played only on the white keys. Tone center is E.
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