Music theorists struggle to identify and name obscure chord progressions in real compositions

Music students and composers encounter non-standard chord movements (like passing chords on leading tones) that don't fit traditional theory textbooks, leaving them unable to properly analyze, understand, or communicate about these harmonic choices. Existing music theory resources and textbooks don't adequately cover edge cases and unconventional progressions found in actual compositions, forcing musicians to spend hours researching or posting on forums for answers.