2.1 Notes
Whole Note
Only the note head, not filled in. Sits between the lines for space notes. Has a line through it for line notes. Lasts for 4 beats in 4/4 time.
Half Note
A whole note with an added stem. Worth 2 beats in 4/4 time.
Quarter Note
Filled in note head with a stem. Worth 1 beat in 4/4 time.
Eighth Note
Filled in note head with a stem and a flag (or bar for 2 or more eighth notes). Worth 1/2 beat in 4/4 time.
Sixteenth Note
Filled in note head with a stem and two flags (or bars). Worth 1/4 beat in 4/4 time.