### Table Of Contents

# Typing Intervals in the Theory Line

Here is an example of what intervals look like when they are engraved in the theory line:

To enter an interval you type text input that defines the interval's *quality* and *size*.

### Interval Quality

The *interval quality* represents the type of interval being described:

interval quality: diminishedminormajorperfectaugmentedtext input: o,dmMp+,a

- For a
*diminished*interval, type the lower-case letter 'o' or a lower or upper-case 'd'. - For a
*minor*interval, type the lower-case letter 'm'. - For a
*major*interval, type the upper-case letter 'M'. - For a
*perfect*interval, type a lower or upper-case 'p'. - For an
*augmented*interval, type the plus sign '+' or a lower or upper-case 'a'.

Note that the *diminished* and *augmented* qualities will always be engraved as ° and + in the theory line.

### Interval Size

The *interval size* is the number of lines and spaces the interval spans, starting with 1 for the unison:

interval size: unisonsecondthirdfourthfifthsixthseventhoctaveninthtenth...text input: 12345678910

Numbers up to and including the octave are called *simple intervals* and intervals larger than the octave are *compound intervals*. For convenience, when you are asked to identify a compound interval you can type either the compound symbol or its simple version. For example, a written major tenth can be correctly identified in the theory line by typing either `M10` or `M3`. However, the reverse is not true: if the written interval is a minor second it is incorrect to identify it as `m9`, the only correct answer is `m2`.

### Typing in the Theory Line

To type intervals in an interval assignment do the following:

- Click on an entry box to open the theory line editor just beneath the theory line.
- Type the quality and size of the interval as described above into the theory line editor. As you type, your input will be engraved in the theory line in proper music notation.
- When you are finished typing, press Return or use the
`Tab`key to move to the next entry in the theory line.