Hi all,
I know Alkan doesn't perhaps count as especially unsung but some of the works on Mark Viner's new disc are first recordings.
Here's a link to his web shop for pre-ordering this disc:
www.markviner.com/product-page/paraphrases-marches-symphonie-for-solo-piano-op-39
I'll be buying this from there rather than anywhere else as at least that way, Mark gets all the royalties and, in these strange times, the artists need all the help they can get.
I doubt whether Alkan will ever be a sung composer, so please go ahead!