noun
magic flute; flute with magical powers
Refers to a flute that possesses supernatural abilities, often appearing in myths, fairy tales, or fantasy settings.
その物語では、魔笛を吹くと動物たちが踊り出す。
In that story, when you play the magic flute, animals start dancing.
noun
The Magic Flute (opera by Mozart)
Specifically refers to Mozart's opera 'Die Zauberflöte'. In Japanese, it is almost always written as 魔笛.
来月、オペラ座でモーツァルトの「魔笛」が上演される。
Next month, Mozart's 'The Magic Flute' will be performed at the opera house.