Page:Pratt - The history of music (1907).djvu/60

 Tetrachords: Extreme / Disjunct / Conjunct / Middle / Upper

Nete hyperbolaion, Last string of the extreme tetrachord,  A"

Paranete hyperbolaion, Next to last string of the extreme tetrachord, G'

Trite hyperbolaion, Third string of the extreme tetrachord, F'

Nete diezeugmenon, Last string of the disjunct tetrachord, E'

Paranete diezeugmenon, Next to last string of the disjunct tetrachord, D'   (Also, Nete synemmenon. Last of the conjunct tetrachord)

Trite diezeugmenon, Third string of the disjunct tetrachord, C'   (Also, Paranete synemmenon, Next to last of the conjunct tetrachord)

Paramese, Next to the middle string, B'

(Trite synemmenon, Third of the conjunct tetrachord) Bb

,   Middle string,   A'

Lichanos meson, Forefinger string of the middle tetrachord, G

Parhypate meson, Next to upper string of the middle tetrachord, F

Hypate meson, Upper string of the middle tetrachord, E

Lichanos hypaton, Forefinger string of the upper tetrachord, D

Parhypate hypaton, Next to upper string of the upper tetrachord, C

Hypate hypaton, Upper string of the upper tetrachord, B

Proslambanomenos,  Added tone,   A

The tone Mese fulfills something of the office of a keynote.

The conjunct tetrachord is an extra feature, taking the place of the disjunct tetrachord when a sort of modulation is desired. The names of the two are derived from the relations to the middle tetrachord, the disjunct standing one step away from the latter, while the conjunct joins it directly.