Are you asking what kind of folk song the music is echoing in the air? American folk songs.

"Music in the Air" is an American folk song. Lyrics: Listen to music echoing in the air, the dawn casts in the east, the morning glow dyes the sky red, the sky appears clearer, and the sound of harps is heard everywhere.

Folk songs refer to songs with their own national style and characteristics created by each nation in ancient or modern times. They are traditional songs of the working people of each nation.