abbreviations
"Tr" - a traditional, usually academic definition or symbol
"Ex-" - example

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

OBERVATION COMPARISON
of patterns(of melo-rhytm, melo-harmony, or melo-lines) which recur, for better or for worse, in several tunes

OCTAVE
Tr- Distance, in the Quantitative Dimension of Pitch (frequency) seeInterval

OFF-BEAT
The second half of any note-value

OPENING
One of thetransformationsin Melo-Harmony.

ORBIT(S)
The 4 members of a chord can be designated by the "orbit" in which they "gravitate" according to their degree of tension
      Orbit 0is theCOMMON TONE, with no tension at all.
      Orbit 1is thePROPER TONEwith very little tension
      Orbit 2is theMEDIANwith considerably more tension
      Orbit 3is theMOTRIXwith high tension
      Orbit 4is a chromatic version ofOrbit 0with very high tension (resolving toOrbit 3)

ORBIT 4
A form of Chromaticism (a Transformation in Harmony) in whichOrbit 0is chromaticized as it procuresOrbit 3

ORCHESTRATION
The Art of organizing sound in the world of Energy (ie. Volume and Timbre), for performance. See theOrchestrationChapter