Sound path immortal material

At the qi sea banquet, Wu Ma Yang presents a floating shell that Eastern Sea immortals recognize as a small music clam shell, a rank seven immortal material. Music clams are ordinary clams that contain sound path dao marks: at desolate beast level they become giant music clams, then shrink again as ancient desolate beasts into small music clams. The specimen he shows is dead and without vitality, merely a rank seven sound path immortal material. ^{ch. 1885}

In Dragon Whale Paradise, Shen Cong Sheng pays Fang Yuan with a palm-sized desolate beast conch that stores wave sound. That wave sound is a sound path rank seven immortal material, a specialty product of Shen clan that can produce sounds for years without stopping. Fang Yuan names it constant wave sound when he takes the deal. ^{ch. 1895}