A strange melody is only heard by those who have mastered elemental magic. Parina is the only one who knows it. You can find her in the temple of Gludin Village.

The source of the song is most likely the singing flower, a legendary evil spirit. Casian should be able to tell you more about singing flowers, shouldn't he?

Elder Casian informs you that there are several types of singing flowers. You must kill them all!

Monsters to Hunt -
Near Fellmere Lake: Singing Flower Phantasms
Oren Territory, The Gods' Falls Next to Ivory Tower: Singing Flower Nightmares
South Puddle of Giran Castle Town: Singing Flower Darklings

You've eliminated the singing flowers and collected all their seeds. Take them to Bard Rukal.

You must have absolute tone in order to grow a millennium flower. Find the water undine in Fellmere Lake, the salamander of flames in the Ruins of Despair, the wind sylph at the northwest entrance to the Wastelands and the earth snake in the Ruins of Agony. They have the elemental tones.

You've collected the tones of 4 spirits. Return to Rukal to create absolute tone.