I'll freely admit to not seeing, or hearing, the interest. The expression 'Money for old rope' comes to mind. I deliberately had a go at listening to the clip above, and gave it much longer than usual, but abandoned just the same at five minutes. Good luck to 'em, but it's not for me. One group, long gone now, did a similar thing, but well : Meï Teï Shô. (No female bassist, but good stuff despite that...)