This is not, as you may be hoping, an account of Flamenco as it was in 1931, the heyday of Manuel Torre and Manolo de Huelva: it's a romance set in the early 19th century, with only the most cursory connection to the title.
A couple of flamenco styles are mentioned in passing (including, anachronistically, bulerías, which weren't invented until much later); but that's about it.
Lady Eleanor's novels were very popular in her day, and several were filmed. I didn't think this one was particularly good.
Your mileage may vary.