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
- neutral third
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 | Audio |
| 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 |