Definitions

1. adjective

relating to or denoting notes or pitches that are enharmonic equivalents, i.e., notes that have the same pitch but different letter names, such as Bb and A#

“The composer’s use of enharmonic notes added complexity to the musical piece.”

2. noun

a note or pitch that is an enharmonic equivalent of another note or pitch

“The enharmonic equivalent of Bb is A# in some musical contexts.”