GBbDbEb

GBbDbEb refers to a four-note pitch collection consisting of the notes G, B-flat, D-flat, and E-flat. The uneven spelling is common in tonal and contemporary contexts, and the same set can be written enharmonically as G, A-sharp, C-sharp, D-sharp.

From a harmonic standpoint, the collection is not a standard major or minor triad. The interval from G to B-flat is a minor third, and G to D-flat is a diminished fifth (tritone). The note E-flat adds further color, forming a four-note sonority that can be described as a G diminished triad (G–B♭–D♭) with an added E-flat. Depending on the musical context and spelling, analysts may treat the pitch class set as a color sonority rather than a conventional functional chord.

In set-theory terms, the four pitch classes produce interval classes including 3 semitones (minor third), 2 semitones (major second), 6 semitones (tritone), and 8 semitones (minor sixth) between certain pairs. The exact interpretation often depends on voice leading, key center, and intended sonority in a passage.

Practical use and voicing: the sonority can be voiced in various inversions, for example G–B♭–D♭–E♭ in root position, or in voiced clusters such as B♭–D♭–E♭ over a bass G. It serves as a coloristic sonority useful in jazz, film music, or contemporary classical textures where nonfunctional, ambiguous harmony is desired.