ID3 = [?; File tag format, name originally meaning ‘ID of mp3’]
Source: Reconciling Style Guide with ID3 spec among others
CE = Classical Extras
Source: Search " CE " in that thread (or elsewhere, sorting out French “ ce ”).
W&M = Work & Movements
FRBR = Functional Requirements for Bibliographic Records
by
IFLA = International Federation of Library Associations and Institutions
Source
Book of carefully-edited songs, with CD: what Works?
Thoughts on data model: MB-Works, music scores, and FRBR-Expressions
BTW = By The Way