Tags: important key word for 9th English, key notes for The Sound of Music Key Notes for 9th English , Important Notes for 9th English, Revision notes for 9th English, Short notes for The Sound of Music, Chapter summary for 9th English, Key points for CBSE, important notes for The Sound of Music, class 9 important keywords, The Sound of Music key notes, cbse key notes for class 9, 9th standard key notes for English subject, key notes for The Sound of Music 9th standard, Notes for 9th standard English, The Sound of Music important notes, short notes for The Sound of Music 9th English, key points for The Sound of Music class 9th, 9th Standard English The Sound of Music key points.