["MUSIC \/ History & Criticism","Music\/Genres & Styles - International","Music;Wales;20th century;History and criticism.","20th century & contemporary classical music","General Adult","Genres & Styles - International","Great Britain\/British Isles","History","MUSIC \/ History & Criticism","MUSIC APPRECIATION","Music","Music\/Genres & Styles - International","Music;Wales;20th century;History and criticism.","Non-Fiction","UNIVERSITY PRESS","20th century & contemporary classical music"]