Rhythm
The combination of long and short sounds into a pattern
Pitch
How high or low a note is
Pulse/Meter
The regular beat of the music and how it is divided
Tonality
Whether a piece is major or minor
Texture
How many different layers are there to the music and what do they do
Timbre
The individual sound of the instrument voices
Attack and Decay
How notes are begun and ended
Structure
How the individual sections of the music are put together to form the whole piece
Silence
Ssshhh!
Dynamics
How loud or quiet the music is
Articulation
If music is smooth or detatched