Forgotten Lullaby

Forgotten Lullaby is a trinket added in The Binding of Isaac: Repentance.

Effects

 * Doubles the rate of fire of Isaac's familiars.
 * Familiars with charged shots will have their charge time halved. The recovery time between shots is not affected.

Trivia

 * This trinket was originally called Song of the Siren in Antibirth.
 * Forgotten Lullaby, the trinket's new name in Repentance, is also the title of the secret room theme in Mudeth's original soundtrack for the Antibirth mod.