GbCEb

GbCEb refers to a triadic pitch-class set consisting of G-flat, C, and E-flat. The three notes are spaced by minor thirds, forming a diminished triad when ordered as C–E♭–G♭. The sequence Gb–C–E♭ places G♭ in the bass, which corresponds to the second inversion of the C diminished triad.

In tonal harmony, diminished triads are used to create tension and propel resolution. The C diminished triad (C–E♭–G♭) often functions as a leading-tone sonority toward a tonic a half step away, such as D♭ major or D♭ minor, among other targets. The triad’s symmetry means its inversions share the same pitch-class set, making voicing flexible and interchangeable in a musical passage.

Enharmonic considerations note that the spellings G♭ and F# or E♭ and D# can be used interchangeably in equal temperament, depending on key context and voice-leading requirements. The exact spelling of GbCEb is typically chosen to reflect the surrounding harmony and melodic lines.

Notation-wise, GbCEb is not a standard chord symbol by itself. In functional analysis, it is identified as a C diminished triad, sometimes indicated as Cdim or C°, with Gb in the bass to denote a second inversion, or simply described as the pitch-class set {C, E♭, G♭}.

Overall, GbCEb represents a common diminished sonority encapsulated by the notes C, E♭, and G♭, frequently encountered in classical, jazz, and film music for its tense, leading-tone character.