In "They're Smurfing Our Song," the reason the mute wood elf Laconia was not affected by Woody's cursed pan flute is that she is actually deaf. Her deafness was previously evident when she was unaffected by the music from Gargamel's magic organ during her wedding in the 1985 Smurf special "Smurfily Ever After."
"They're Smurfing Our Song" is the only episodic appearance of Laconia's husband Woody. He debuted in the 1985 Smurfs special "Smurfily Ever After."