Echoes of the Wind Harp

Once upon a breeze, where the tall grasses bow, there dwelled a harp made of whispers and wind.

It sang songs only the clouds could understand, tunes that tickled the stars.

To unlock the melody, one must listen closely:

Winds say: "7 leaves dance, 3 shadows play, 1 sunbeam whispers away."

And the sunbeam wishes for: