"Operas, English." . . "Opera England." . . "Music 20th century." . . "Opera." . . "Program music 20th century." . . "Opera, English." . . "Music." . . "Death in music." . . "Symbolism in music." . . "Program music." . . . . "1900 - 1999" . . "Leitmotif." . . . . . . . . . . . . . . . . . "Nature in Music: and other studies in the tone-poetry of to-day"@en . . . . . . . "Nature in music and other studies in the tone-poetry of today"@en . "Nature in music and other studies in the tone-poetry of today" . . . . . . . "Criticism, interpretation, etc" . "Criticism, interpretation, etc"@en . . . . . . . . . . . . . . . . . . "England." . .