Intervals without Accidentals (only white piano keys) Theory Things   William Wieland
IntervalPitchesIf No Accidentals
mi2C
B
F
E
All other 2nds are major.
M3E
C
A
F
B
G
All other 3rds are minor.
A4B
F
All other 4ths are perfect.
d5F
B
All other 5ths are perfect.
mi6C
E
F
A
G
B
All other 6ths are major.
M7B
C
E
F
All other 7ths are minor.
If an interval has accidentals,
  1. Cover them up.
  2. Identify the interval without accidentals.
    (Refer to the chart on the left.)
  3. Uncover the accidentals and adjust the
    quality of the interval accordingly.
    (See below.)
Augmented (A)
Major (M)
minor (mi)
diminished (d)
( 2, 3, 6, 7 )
Augmented (A)
Perfect (P)
diminished (d)
( 1, 4, 5, 8 )
Intervals (Numerical Size Only)   (for practicing)