Mozart Doesn't Sing Lullabies

Mozart Doesn't Sing Lullabies; Mozart wa Komoriuta wo Utawanai; モーツァルトは子守唄を歌わない

In 1809, Carl Czerny, Franz Peter Schubert, and Ludwig van Beethoven are on a mission to solve the mystery surrounding Mozart's composition called Mozart's Lullabies. The investigation begins after the death of a shop owner who possessed the musical score. Does this pique your curiosity? Are you eager to solve this puzzle?