It was the true hidden gem of the cycle, Boris Giltburg wrote about Sonata No. 13. The fault for its being a 'hidden' gem lies at least partially with its sister, the incommensurably more popular 'Moonlight' Sonata, Op. 27, No. 2. The nickname was coined by Ludwig Rellstab, a German poet and influential music critic, some five years after Beethoven's death, but its colossal popularity certainly dated back to Beethoven's lifetime. Even without a nickname, the starkly painted landscape of its first movement, the forlorn melody, the quiet grief embodied in the accompanying triplets, the fateful descent of the bass line - all those gripped the imagination of the listeners. A middle movement of exquisite, fragile beauty, and a dark whirlwind of a finale with its rage and despair strengthened the impact that much more. And the fact that the first movement is relatively technically undemanding could only increase the work's popularity.
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