ABC song is too loud – Colorful ABC (Nursery English Alphabets Flashcards for Kids | Montessori Education) Review

The app is just great but the ABC song is too loud. My 3 year old son keeps playing it and insist for a full volume.
Review by Imelda Mellenby on Colorful ABC (Nursery English Alphabets Flashcards for Kids | Montessori Education).