Reverse Interva Calculator Music

What is a Reverse Interval in Music?

A reverse interval in music refers to the inversion of a standard interval. For example, a major 6th interval between two notes is the reverse of a minor 3rd interval. Understanding reverse intervals helps musicians better understand harmonic relationships and chord structures.

In music theory, intervals are classified by their size and quality. The reverse interval calculator helps you find the correct notes that create a specific interval when you know the interval name but not the exact notes.

How to Use the Reverse Interval Calculator

Using the reverse interval calculator is straightforward. Follow these steps:

1. Select the interval quality (major, minor, perfect, etc.) from the dropdown menu.
2. Enter the interval number (e.g., 3 for a third, 6 for a sixth).
3. Click the "Calculate" button to find the reverse interval.
4. Review the result, which will show you the notes that create the specified interval.

The calculator will display the reverse interval and provide additional information about the interval, such as its semitone distance and common chord uses.

Formula Used

The reverse interval is calculated by finding the interval that is the inversion of the specified interval. The formula used is:

For example, if you specify a major 6th interval, the reverse interval will be a minor 3rd.

Worked Examples

Example 1: Major 6th Interval

If you specify a major 6th interval, the reverse interval will be a minor 3rd. This means that the notes C and A create a major 6th interval, while the notes E and G create a minor 3rd interval.

Example 2: Perfect 5th Interval

A perfect 5th interval is its own reverse. This means that the notes C and G create a perfect 5th interval, and the same notes create the reverse perfect 5th interval.