FF Type-0 was released a few years ago for PSP and only in JP, though I've heard rumours that it was going to be internationalised. It's my all time favourite FF despite not being a classic, and Deuce is one of my favourite characters. ^^
But as much as I'd love to see something like that, I think SE has already gated themselves out of it with the history of the bard (they were originally archers who found that music could tangibly increase morale; the idea of a bard being primarily a musician was the result of them embellishing their songs post-war to the point where the words lost their meaning, so they sung only for entertainment purposes).
Maybe we could see music-related attacks if they add advanced jobs.