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I pressed myself to the wall to more fully hear the muted sound, music like nothing I had heard previously. The mysterious player was creating harmonies previously unknown to me. Their unknown instrument possessed a bright timbre and otherworldly tone, generating notes that were monsterful.
I returned every night that week to the small crawlspace where I stored my objects of sentiment and out of season clothing to be serenaded by that fascinating sound. Each night the piece was different. As the week wore on, the sounds became dark and ominous, finally becoming so terrifying as to preclude my returning.