Keepers of the Glade

Song: Druzzil's Disillusionmeant
Song: Melody of Mischief
Song: Warsong of Zek
Song: Dreams of Thule
Song: Tuyen's Chant of Venom
Song: Tuyen's Chant of Ice
Song: Psalm of Veeshan
Song: Rizlona's Call of Flame
Song: Dreams of Terris
Song: Chorus of Marr
Song: Call of the Banshee
Song: Requiem of Time
Song: Tuyen's Chant of Fire
Song: Lullaby of Morell
Song: Harmony of Sound
Song: Wind of Marr
Song: Tuyen's Chant of the Plague

Minstrel Eoweril in the library in the Plane of Knowledge will give you a 61+ cleric scroll for each incorporeal(Ethereal, Spectral, Shadowy) parchment that you bring to him.

These drop randomly on mobs in the Planes of Power.