A lullaby is a peaceful melody that has been comforting infants for epochs. These songs are often basic in form, with familiar melodies and verses that describe dreams.
A good lullaby can ease a baby to sleep quickly, https://youtube.com/playlist?list=PL9MA18nixW__bOMUT9dxRavfZM82qEeYy&si=TUbK6WSPIpr-1n66