Interval Library - Browse intervals in any key
Study every simple and compound interval from a chosen tonic: names, standard abbreviations, semitone distance, and difficulty. Use this library to speed up transcription, tighten intonation, connect harmony to melody, and build reliable interval recognition before you move on to chords and scales.
Quick-select common intervals
Featured intervals in C sharp
| Abbreviation | Actions | ||
|---|---|---|---|
| perfect unison | P1 | Beginner | |
| perfect fifth | P5 | Beginner | |
| perfect fourth | P4 | Beginner | |
| perfect octave | P8 | Beginner | |
| major second | M2 | Beginner | |
| major third | M3 | Beginner | |
| major sixth | M6 | Beginner | |
| major seventh | M7 | Beginner | |
| minor second | m2 | Easy | |
| minor third | m3 | Easy | |
| minor sixth | m6 | Easy | |
| minor seventh | m7 | Easy | |
| major ninth | M9 | Easy | |
| perfect eleventh | P11 | Easy | |
| major thirteenth | M13 | Easy | |
| diminished second | d2 | Intermediate | |
| augmented second | A2 | Intermediate | |
| augmented fourth | A4 | Intermediate | |
| diminished fifth | d5 | Intermediate | |
| augmented fifth | A5 | Intermediate | |
| diminished sixt | d6 | Intermediate | |
| augmented sixth | A6 | Intermediate | |
| diminished seventh | d7 | Intermediate | |
| minor ninth | m9 | Intermediate | |
| minor thirteenth | m13 | Intermediate | |
| major tenth | M10 | Intermediate | |
| diminished third | d3 | Expert | |
| diminished fourth | d4 | Expert | |
| augmented third | A3 | Expert | |
| augmented seventh | A7 | Expert | |
| augmented ninth | A9 | Expert | |
| minor tenth | m10 | Expert | |
| diminished duodecime | d12 | Expert | |
| diminished octave | d8 | Guru | |
| augmented octave | A8 | Guru | |
| augmented undecime | A11 | Guru | |
| augmented tredecime | A13 | Guru | |
| augmented unison | A1 | Guru |
Why intervals matter for musicians and producers
Intervals describe the space between two pitches: they are how you name melodic motion, spell chords and scales, and explain tension and resolution. This library groups every quality in one place so you can compare sounds, read shorthand consistently, and rehearse recognition with structured exercises.
Pair interval study with harmony references when you arrange or improvise: chords stack intervals, and scales sequence them in patterns. Continue with the chord libraryand the scale libraryto see how the same interval vocabulary appears inside voicings and modes.
























