[ Pendulum Effect ]
You cannot Pendulum Summon monsters, except LIGHT monsters. This effect cannot be negated. If you do not control any face-up monsters, other than "Melodious" monsters: You can add 1 "Melodious" Spell/Trap from your Deck to your hand. You can only use this effect of "Couplet the Melodious Songstress" once per turn.
[ Monster Effect ]
[ Pendulum Effect ] You cannot Pendulum Summon monsters, except LIGHT monsters. This effect cannot be negated. If you do not control any face-up monsters, other than "Melodious" monsters: You can add 1 "Melodious" Spell/Trap from your Deck to your hand. You can only use this effect of "Couplet the Melodious Songstress" once per turn.
[ Monster Effect ] If this card is added to your hand, except by drawing it for your normal draw: You can reveal this card; Special Summon 1 Level 4 or lower "Melodious" monster from your hand or GY. If a "Melodious" Fusion Monster(s) is Special Summoned to your field while this card is face-up in your Extra Deck: You can place this card in your Pendulum Zone. You can only use each monster effect of "Couplet the Melodious Songstress" once per turn.