enharmonic modulation

noun

1. music a change of key achieved by regarding a note in one key as an equivalent note in another. Thus E flat in the key of A flat could be regarded as D sharp in the key of B major

Example Sentences

Not every progression of chords which is, so to speak, spelt enharmonically is an enharmonic modulation in itself.

From Project Gutenberg

In an enharmonic modulation, two chords differing by an enharmonic quantity are treated as identical.

From Project Gutenberg