Interval Calculator From Chords

This interval calculator helps musicians and music theory students determine the intervals between notes in chords. By inputting the notes of a chord, you can quickly find out what intervals are present and how they relate to each other.

How to Use This Calculator

Using the interval calculator from chords is straightforward:

Select the root note of your chord from the dropdown menu.
Choose the chord type (major, minor, diminished, etc.) from the options.
Click the "Calculate" button to see the intervals in the chord.
Review the results, which will show you the intervals and their musical relationships.

The calculator will display the intervals in semitones and their common names (e.g., major third, perfect fifth). You can also visualize the intervals using the included chart.

How the Calculator Works

The interval calculator from chords uses standard music theory to determine the intervals between notes in a chord. Here's how it works:

The calculator identifies the root note of the chord.
It then calculates the intervals between the root note and each other note in the chord.
The intervals are displayed in semitones and their common names.
The calculator also provides a visual representation of the intervals using a chart.

Interval = (Note Position - Root Position) mod 12

Where Note Position and Root Position are the positions of the notes on the chromatic scale (C=0, C#=1, D=2, etc.)

This formula ensures that the calculator accurately identifies the intervals between notes in any chord.

Worked Examples

Example 1: C Major Chord

For a C major chord (C-E-G), the calculator will show the following intervals:

C to E: Major third (4 semitones)
C to G: Perfect fifth (7 semitones)

Example 2: A Minor Chord

For an A minor chord (A-C-E), the calculator will show the following intervals:

A to C: Minor third (3 semitones)
A to E: Perfect fifth (7 semitones)

These examples demonstrate how the calculator can help you understand the structure of chords.

Frequently Asked Questions

What is the difference between a major and minor chord?: A major chord has a major third interval, while a minor chord has a minor third interval. This is the primary difference between the two types of chords.
How do I read the interval chart?: The interval chart shows the intervals between the root note and each other note in the chord. The x-axis represents the notes, and the y-axis shows the interval size in semitones.
Can I use this calculator for non-standard chords?: Yes, you can use this calculator for any chord, including non-standard or extended chords. The calculator will accurately identify the intervals in any chord you input.