polyrhythm
the appearance of several rhythms at the same time
key or tonal center
the center Key
Melody
Length, Range, step and leaps, contour, decorative
Modulation
Key change
Scales
you know what those are
chords
three or more pitches sounded together
Monophonic
no other accompanying sounds
homophonic
melody with accompaniment
polyphonic
presence of two or more line with melodic