2. Wolfgang Amadeus Mozart

Wolfgang Amadeus Mozart’s sudden death at 35 left the world mourning an unfinished masterpiece: his Requiem Mass in D minor. This evocative work, begun in his final days, was ultimately completed by his student Franz Xaver Süssmayr. To this day, scholars debate how Mozart truly envisioned its ending. His passing ended a career defined by musical brilliance and innovation, leaving listeners to wonder what further wonders he might have created. [Source]