Sound
Vibrations transmitted, usually through air, to the eardrum which sends impulses to the brain
Music
an art based on the organizations of sounds in time
Pitch
the relative highness or lowness of a sound
Tone
a sound that has a definite pitch
Interval
the “distance” in pitch between any two tones
octave
interval between two tones in which the higher tone has twice the frequency of the lower tone