IPA: /ˈsɔŋfəli/
KK: /sɔŋfəli/
In a way that is full of song or music; melodiously.
The children sang songfully during the festival, bringing joy to everyone around.
Songfully → It is formed from "song" (from Old English *sang*, meaning a musical composition) and "-fully" (meaning in a manner full of). The word "songfully" means in a manner full of song or music.
Think of 'song' as a musical composition and '-fully' meaning in a manner full of something — so 'songfully' describes doing something in a way that is full of music.