“Sonata quasi una fantasia” was the title given to it by Beethoven, and yet the world of music knows it as the “Moonlight Sonata” – an epithet that was already around during the composer’s lifetime.
“The lake rests quiet under the light of the moon at twilight; the wave thuds against the dark bank”, wrote Ludwig Rellstab on the 1st movement in 1823. “It is as if we catch sight of a colossal grave in the middle of a lonely plain, palely lit by the sickle moon”, was what Wilhelm von Lenz wrote. Beethoven might have been influenced by the sound of the Aeolian harp, as Murray Perahia and Norbert Gertsch explain in the introductory texts to this edition, referring to the latest research. Perahia also provided the fingerings.
貝多芬將這首作品命名為「Sonata quasi una fantasia」(幻想曲奏鳴曲),但音樂界更熟知的卻是「月光奏鳴曲」-這個別稱在作曲家生前就已流傳。
路德維希·雷爾斯塔佈在1823年對第一樂章的描述是:「暮色降臨,月光下,湖面靜謐安詳;波浪拍打著幽暗的岸邊。」威廉·馮·倫茨則寫道:「彷彿我們瞥見一座巨大的墳墓室矗立在寂靜的平原中央,被彎月的微光照亮。佩拉西亞也提供了指法圖。