Interval Calculator for Music

What is a musical interval?

A musical interval is the distance between two pitches. It's measured in semitones, which are the smallest unit of pitch difference in Western music. Intervals can be classified as perfect, major, minor, augmented, or diminished, depending on their size and quality.

The interval between two notes is determined by counting the number of semitones between them. For example, the interval between C and D is a minor second (1 semitone), while the interval between C and E is a major third (4 semitones).

How to use this calculator

Using the interval calculator is simple:

1. Select the first note from the dropdown menu.
2. Select the second note from the dropdown menu.
3. Click the "Calculate" button to see the interval between the two notes.

The calculator will display the interval in semitones, the interval name, and any enharmonic equivalents.

Types of musical intervals

Musical intervals are categorized based on their size and quality:

• Perfect intervals: Unison (0 semitones), Fourth (5 semitones), Fifth (7 semitones), Octave (12 semitones)
• Major intervals: Major second (2 semitones), Major third (4 semitones), Major sixth (9 semitones), Major seventh (11 semitones)
• Minor intervals: Minor second (1 semitone), Minor third (3 semitones), Minor sixth (8 semitones), Minor seventh (10 semitones)
• Augmented intervals: Augmented fourth (6 semitones), Augmented fifth (8 semitones)
• Diminished intervals: Diminished fourth (4 semitones), Diminished fifth (6 semitones)

Enharmonic equivalents

Enharmonic equivalents are notes that sound the same but are spelled differently. For example, C# and Db are enharmonic equivalents. The interval calculator will identify any enharmonic equivalents for the interval you calculate.

Practical applications

Understanding musical intervals has practical applications in various aspects of music:

• Composition: Intervals are used to create melodies, harmonies, and chord progressions.
• Improvisation: Musicians use intervals to create spontaneous solos and improvisations.
• Music theory: Studying intervals helps musicians understand the structure and function of music.
• Ear training: Recognizing intervals is essential for developing musical ear and pitch recognition.