Hi,

In 4/4 time there are 4 beats to the bar. You count 1,2,3,4....1,2,3,4. etc.

You can play 1 whole note and and make it last 4 beats

You can play 2 half notes 1,2,....1,2 making 4 beats to the bar.

You can play 4 quarter notes....1,2,3,4. beats to the bar.

You can play 8 1/8 notes 1,2,..3,4...5,6,..7,8. to the bar

You can play 16 1/16 notes 1,2,3,4...1,2,3,4...1,2,3,4...1,2,3,4... to the bar.

Hope that helps.

Someone may come up with a better answer.

So yes, you can play 4 quarter notes 4 times. That will be 1bar.

Joe.