"Tr" - a traditional, usually academic definition or symbol
"Ex-" - example
Abbreviation for a . see Note-values
Abbreviation for a .
see Natural Harmonics
A 2-line staff, in the dimension of Chrominicism, used to represent Harmony and the position of its Harmonic Functions.
The simultaneous, vertical structure of sound, based on intervals of the simplest ratio, octave, perfect fifth and major third.
One of the 3 structures of Music, it is, with Rhythm, more fundamental than Melody, which evolves from its Voice-leading.