So a lot of people ask me what a time signature is. So I decided to write it down and cement it in my own head. But this is the basics. Fairly straight forward. Now for actually playing music...

For every time signature, the rhythm is defined as, a whole note (four beats), a half note (two beats), a quarter note (one beat), an eigth note (1/2 beat), a sixteenth (1/4 beat), a thirty second (1/8 beat) and a sixty-fourth (1/12 beat). So a whole note in 4/4 would last for the entire bar, three quarter notes in 3/4 would fill the bar, a dotted note means that you add half again the value of the note, (or three subdivisions). Therefore, two dotted quarter notes would fill a bar of 6/8 because 2 dotted quarters equals 6 eights, a double dotted note means you add half again of half the value of the note (or seven sub-subdivisions). A double dotted quarter would be 7 sixteenths so a double dotted quarter, a sixteenth and 4 eights wouldfill a bar of 4/4.