pitch
How high or low a sound is. A bird's chirp has a high pitch. A big drum has a low pitch.
melody
The tune of a song: notes that go up, down or stay the same.
dynamics
How loud or soft music is.
forte
An Italian music word that means loud. Its symbol is f.
piano
An Italian music word that means soft (quiet). Its symbol is p.
tempo
How fast or slow the music goes.
timbre
The special sound of each voice or instrument that lets you tell them apart. Say it "TAM-ber".