The numeric part of a musical interval is found by counting each **letter name **from the **first** **note** of the interval to the **last** **note**. This may also be thought of as counting each **line** and **space** of the staff from one note to the other, including the lines and/or spaces on which the notes of the interval reside.

For example, look at the following interval below. We would like to find the numeric name for the interval from F to D. To find the correct number, we call F “1”, then count up each letter name (line and space) until we get to D.

We can see from counting that F is 6 letter names (or lines and spaces) from D. Therefore, F to D is an interval of a sixth.

Notice that if we start on D and count down to F we still end up with the same interval:

See, we still end up with the interval of a sixth.

**Musical Counting!**

Let’s practice – for each interval below perform the following steps to find the numeric name:

- Use the interactive
*Flat*staff at the bottom to place whole notes that are needed on each letter name (line and space) within the given interval (hint – don’t forget to start and end on the notes of the interval). - Count the number of notes that you placed in step one.
- Enter the number for the interval (counted notes from above step) in the Interval box and click the Submit button.