Nikolai Rimsky-Korsakov · section 62 of 96

Exceptions

1) Plans modulating from a major key to the minor key of the same name (C–c or A–a, and vice versa) require that yet another key be inserted into them: one passes first to the relative key of the following key:

1) C (f – E♭) c

2) a (E – f♯) A, etc.

These procedures must be used exclusively.

2) Modulation from a major key to a minor key lying a major second below (C–b♭), and from a minor key to a major key lying a major second above (a–B), requires a modulating plan of two fourths or two fifths in succession:

1) C —4th— (f) —4th— b♭

2) a —5th— (E) —5th— B

it is therefore preferable to pass through the keys relative to the following keys:

1) C (f – D♭) b♭

2) a (E – g♯) B

or through the keys relative to the preceding keys:

1) C (a – F) b♭

2) a (C – e) B