Music theory recall
Major Third & Perfect Fifth Trainer
Learn the major third and perfect fifth above every note until the answers are automatic. The trainer brings missed and slower questions back more often and saves your progress in this browser.
Name the upper note
0/0 correctMajor third · M3
C → ?
Interval spelling counts: F♯ up a major third is A♯, not B♭.
Accuracy by root and interval
Weakest first, strongest last. Questions you have not answered yet appear at the end.
How the interval trainer works
Each question gives you a starting note and asks for the note a major third or perfect fifth above it. Choose the correctly spelled answer, get immediate feedback, and continue. Questions you miss—or answer slowly—gain priority, while secure answers still return occasionally. This is written music-theory recall rather than interval ear training: no sound is played.
Learning major thirds and perfect fifths
A major third spans four semitones and uses the third letter name above the root. A perfect fifth spans seven semitones and uses the fifth letter name. Letter spelling matters in harmony: A♯ and B♭ sound alike in equal temperament, but only A♯ is a third above F♯.
Start with one interval if you need to establish the pattern, then switch to Both so you must identify the interval as well as recall its upper note. Short daily sessions work well because your results stay saved on this device.
Major third and perfect fifth reference chart
| Root | Major third | Perfect fifth |
|---|---|---|
| C | E | G |
| D♭ | F | A♭ |
| D | F♯ | A |
| E♭ | G | B♭ |
| E | G♯ | B |
| F | A | C |
| F♯ | A♯ | C♯ |
| G | B | D |
| A♭ | C | E♭ |
| A | C♯ | E |
| B♭ | D | F |
| B | D♯ | F♯ |
Related theory practice
Apply these intervals on the fretboard with the Guitar Triad Trainer, practise reading their note names with the Note Identification Trainer, or review key relationships with the Circle of Fifths Metronome.