eighth note,half a beat of sound

eighth rest,half a beat of silence

quarter note,one beat of sound

quarter rest,one beat of silence

half note,two beats of sound

half rest,two beats of silence

whole note,four beats of sound

whole rest,four beats of silence

dotted quarter note, one and one half beats of sound

dotted half note,three beats of sound

triplet,a group of three notes performed in the time of one