List of third intervals
# List of third intervals

Third interval may refer to one of the following musical intervals in equal-temperament tuning:

* major third
* minor third
* augmented third
* diminished third

Alternatively, it may apply to

## Table of thirds in equal temperaments tuning

| Number of semitones | Minor, major, or perfect intervals | Short | Augmented or diminished intervals | Short | Widely used alternative names | Short |
| - | - | - | - | - | - | - |
| 2 | Major second | M2 | Diminished third | d3 | Tone, whole tone, whole step | T |
| 3 | Minor third | m3 | Augmented second | A2 | | |
| 4 | Major third | M3 | Diminished fourth | d4 | | |
| 5 | Perfect fourth | P4 | Augmented third | A3 | | |
