Unless Op.7, or Op.13 - or Op.17..., or some early unpublished/WoO work, or- something- is Ballade No.1
Most of the IMSLP worklists at least begin in progress (often compiled out of material from Worldcat and publishers' catalogs etc.), even if --- optimally --- later they're compared to, and rationalized with, more authoritative worklist publications.
Most of the IMSLP worklists at least begin in progress (often compiled out of material from Worldcat and publishers' catalogs etc.), even if --- optimally --- later they're compared to, and rationalized with, more authoritative worklist publications.