The second movement of Fibich's Symphony No. 2 (1892) is supposed to be
quite explicitly erotic. Knowing the story of his life, I would not be
surprised if some of the late piano pieces enclose such references as well.
Varese's unfinished Nocturnal also comes to mind. Alfven's Symphony No.
4 (Fran havsbandet) was nicknamed "Sinfonia erotica" by some Stockholm
critic after it was premiered. This was not meant as a positive comment,
but actually it does make sense.
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