In my reply to OP, I wrote two grafs. In their entirety:
*There is a strong tradition of "feminine" vs. "masculine" in the critical literature beginning in the 19 century (e.g. the biographies of Mozart and Beethoven by [Otto Jahn](http://en.wikipedia.org/wiki/Otto_Jahn)); with Mozart (gentle and feminine) vis-a-vis Beethoven (the new manhood). Now with the rise of studies in feminine and homosexual studies in musicology questions like OP are being asked all over.
Re Schubert, the superb scholar Maynard Solomon’s 1989 article * *Franz Schubert and the Peacocks of Benvenuto Cellini gathers near-convincing evidence that Schubert was in fact a pederast, if that helps. The article created a shitstorm of controversy and popular prurient interest. (A poor overview of scholarly debates on the article until 2000 is available.)
In reply, CC wrote:
Hardly. If anything, it promotes a conflation of ideas that are unrelated and should remain that way. *
My first graf gives an additional example germane to OP, and a response about the current wide range of gender studies at this time, including plain and simple sexual studies. “Queer” studies (I used the quotation marks advisedly) did not exist at the time. Feminism, homosexuality, and pederasty, as well as any other mix-and-match definitions and relationships, are ultimately about sexuality in one way or another.
The graf concluded with a point exactly in response to OP, ending in the general state of OP’s request at this time. (Later in the thread D18 contributed a similar example aiding the conversation. [And his appraisal of Slonimsky is spot on.])
My second graf adds a reference and brief explanation of an article famous in musicology and which the OP was perhaps unaware of. I cited it there because of the conclusion of the first graf dealing with his conclusions in an area of sexuality in Schubert.
I added “if that helps” precisely because OP did not go into detail about other areas of Schubert’s sexuality, and it “may” direct his thoughts in other directions of research into the area. To repeat, Solomon’s article is relevant to sexuality and Schubert, its conclusions are interesting in themselves, and it is a tour-de-force of scholarship.
Pederasty is not necessary and sufficient for male homosexuality. Neither is sodomy, for that matter. Nor are a lot of other things, and CC might have given me the respect to maintain that I knew that. He could have spared me absurd semantic parsing. He could have read my post accurately.