beat
The steady pulse in music, like a heartbeat.
rhythm
The pattern of long and short sounds (and silences) in music.
half note
A note that lasts 2 beats. We say "ta-ah". It looks like a hollow oval with a stem.
whole note
A note that lasts 4 beats. We say "ta-ah-ah-ah". It is a hollow oval with no stem.
rest
A symbol for silence. A quarter rest is 1 quiet beat, a half rest is 2, and a whole rest is 4.
metre
How beats are grouped, like in 2s (strong, weak) or 3s (strong, weak, weak).
bar
A box of beats in written music. Bar lines separate the groups. A bar is also called a measure.