Just a few thoughts Saul, from a gurgling baby as a harpist but a wizened old crone as a musician. Although of course the 12 Dances were written for piano, I really have heard them played by any number of traditional and non-traditional instrumentations. Some I like, and some I don’t. One of my children bought me a CD of them played on guitar, which sort of logically might work, from the standpoint of traditional Spanish sound and form, but the result is unfortunate.
They are often played by as orchestral versions, usually quite successfully, to my ear.
When I found my piano version the other day, I played through #4 (did I say several times that it was a favorite of mine?