Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Chord Interval Calculator

Calculates the interval in semitones between any two MIDI notes, collapsed to a single octave. Use it to identify chord qualities, transpose intervals, or analyze harmonic relationships.

Root Note (MIDI)

Target Note (MIDI)

Fill in the required fields to see your result.

Music

Chord Progression Analyzer

Analyze harmonic tension in chord progressions using root note, scale type, degree, and voicing. Use it when composing or arranging music to quantify how tense or resolved a chord feels within a key.

Root Note

Scale Type

Chord Degree

Chord Voicing

Harmonic Value

0 points

Key differences

	Chord Interval Calculator	Chord Progression Analyzer
Category	Music	Music
Inputs required	2	4
Result	Interval (semitones)	Harmonic Value (points)
What it does	Calculates the interval in semitones between any two MIDI notes, collapsed to a single octave. Use it to identify chord qualities, transpose intervals, or analyze harmonic relationships.	Analyze harmonic tension in chord progressions using root note, scale type, degree, and voicing. Use it when composing or arranging music to quantify how tense or resolved a chord feels within a key.