Siren Song is a Keyblade from Kingdom Hearts: Shadows of Eternity. It is obtained by playing through the storyline of Anthony DiNotte, Lily Marina, and/or Alexis LaReine.
Design[]
The shaft of the Kayblade is a line of music, as would be seen when reading sheet music, with a few notes drawn in. The teeth are assorted shells, varying in size and design. The crossguard of Siren Song is two fish, while the hilt is a geyser of water. They Keychain is a treble cleff.