The Music Publishers Association Code of Fair Practice, agreed between composers, publishers and users of printed music, is the place to check for questions like this.
These are two links you should save:-
- MPA Online Code of Fair Practice
- MPA FAQs
Performing arts blogging by the Whittaker Library at the Royal Conservatoire of Scotland.
"The salient changes are as follows:•The terms ‘copy’ and ‘copies’ have been clarified as meaning ‘any form of graphic reproduction of a printed music publication as well as the transcribing of music notation’ (see page 6)•In consultation with the various music performance exam boards and the British & International Federation of Festivals, a permission has been added that enables copies to be made for adjudicators and performance examiners (provided the performer has legitimately obtained his/her copy) (see point 10, page 8)•In consultation with the British Dyslexia Association, a permission has been added that enables a copy to be made by, or on behalf of, a person with dyslexia or any other type of reading impairment (provided the individual has legitimately obtained his/her copy) (see point 11, page 8)These positive developments [...] have already been gratefully received by many librarians and library users."