Quoting Jonathan Rochkind <rochk...@jhu.edu>:
Again, I think it's important to emphasize that FRBR/RDA attempt to be most consistent with legacy practice, while formalizing and explicitly modelling it. You can certainly disagree with how AACR2 has been modelling things for ~30 years, or legacy cataloging practice before that too -- I don't think there's one existentially or platonically right answer, there is no way to 'experimentally' answer it by putting the book and a DVD under a microscope or something -- but that's FRBR/RDA is not attempting to fundamentally change AACR2's entity modelling choices, for better or worse. (Except perhaps when AACR2's entity modelling choices become apparent as inconsistent within themselves, once made explicit and formally modelled).
Another convention (that seems to call for a superwork entity) is the case of a work for which a new edition, i.e. change of content, is issued with a different title. Both AACR2 and RDA treat it as a new and related work.
It's a convention. And the convention under both AACR2 and RDA is to consider a genre change to be a new work, as Thomas Brenndorfer helpfully explains referencing the actual RDA text.
Genre change is the marker, behind that lie changes in creative or editorial responsibility. As text, a Shakespeare play is just text (the content may vary right from the earliest known published versions, but conventionally we regard each Shakespeare play as one work); as a performance it's an expression with additional participation by actors, director, etc.; as a film or video it has further participants (cinematographers, producter, maybe music, etc.) and so on. But it's unmanageable to declare that genre change sometimes marks an expression but sometimes does not.
I might ask though whether notated music and music as sound are different works or different manifestations. Among other considerations, the level of accessibility differs markedly: reading music notation is a skill that's not universal -- if that matters...
Hal Cain Melbourne, Australia hec...@dml.vic.edu.au ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program.
