IPA: /dɪsˈkɒɡrəfɪkəl/
KK: /dɪsˈkɒɡrəfɪkəl/
Related to the study or listing of musical recordings and their details.
The discographical research revealed many rare recordings from the 1960s.
Discographical → It is formed from "disco" (from Greek "diskos", meaning disk or record) and "-graphia" (from Greek "grapho", meaning to write). The word refers to the writing or documentation related to records or disks, particularly in music.
Think of 'disco' as a type of record and '-graphia' meaning to write — this helps you remember that 'discographical' relates to writing about records.