If you're a judge or a lawyer, think about having an early evidentiary hearing to be able to take the evidenciary burden from the defendant to prove negative that they've never heard that song and bring it back to the plaintiff where it belongs, that they have to prove that the other side heard the song.
Si eres un juez o abogado, plantéate tener una audiencia preliminar para quitar el peso de las pruebas del acusado para negar que nunca ha escuchado dicha canción y devolverlas al demandante, dónde pertenecen, que tiene que probar que el acusado la escuchó.