A lullaby is a gentle melody that has been calming infants for generations. These tunes are often simple in form, with repetitive melodies and lyrics that tell stories.
A good lullaby can ease a baby to sleep quickly, https://youtube.com/playlist?list=PL9MA18nixW__bOMUT9dxRavfZM82qEeYy&si=TUbK6WSPIpr-1n66