Pitch is how high, or how low a sound is.
Melody Is the tune of the music that you might hum.
Harmony is when multiple notes are played at the same time to make the music.
Rhythm is a pattern of sounds that keeps going.
Timbre Is a sound every one, or specific thing makes.
Structure Is how the song is put together
Silence is when the music stops for a brief second, then resumes.