wn almost unchanged to our times; for we have but
two modes, major and minor, which are used on every pitch,
constituting various keys. These Greek modes are the basis
on which all our modern ideas of tonality rest; for our major
mode is simply the Greek Lydian, and our minor mode the Aeolian.

LIST OF NOTES IN THE GREEK SCALE

disjunct
Aeolian. [G: a'] +- A. Nete, or highest. ---+
Hypophrygian. +-| G. Paranete, next highest. |
Hypolydian. +-| | F. Trite, third. |
Dorian. +-| | | E. Nete, highest. ---+ conjunct
Phrygian. +-| | | | D. Paranete, next highest. ---+ ---+
Lydian. +-| | | | | C. Trite, third. | |
Mixolydian. +-| | | | | | B. Paramese, next to central tone | |
| | | | | | +- A. Mese, central tone. ---+ ===+
| | | | | +--- G. Lichanos, index finger. |
| | | | +----- F. Parhypate, next to lowest. |
| | | +------- E. Hypate, lowest. ===+
| | +--------- D. Lichanos, index. |
| +----------- C. Parhypate, next to lowest. |
+------------- B. Hypate, lowest. ---+
[F: a,] A. Proslambanomenos, added tone.

To go into detailed explanation of the Greek enharmonic
and chromatic pitch will scarcely be worth while, and I will
therefore merely add that the instruments were sometimes tuned
differently, either to relieve the inevitable monotony of this
purely diatonic scale or for purposes of modulation. A Dorian
tetrachord is composed of semitone, tone, tone; to make it
chromatic, it was changed as follows: [G: e' f' g-' a'] the
_lichanos_, or index finger string, being lowered a semitone.

The enharmonic pitch consisted of tuning the _lichanos_ down
still further, almost a quarter-tone below the second string,
or _parhypate_, thus making the tetrachord run quarter-tone,
quarter-tone, two tones. Besides this, even in the diatonic,
the Greeks used what they called soft intervals; for example,
when the tetrachord, instead of proceeding by semitone, tone,
tone (which system was called the hard diatonic), was tuned
to semitone, three-quarter-tone, and tone and a quarter. The
chromatic pitch also had several forms, necessitating the use