All this "celtic nation" stuff IS a load of utter bollocks, you realise . . romanticised, simplistic mythology. The most the huge majority of the inhabitants of this so-called family of "celtic nations" will claim is a degree of historic link between them. And - as has been noted before - the whole "celtic revival" thing probably owes more to Victorian englishmen (and Victoria) herself than to anything Celtic in origin (and, more recently, to anglo-american marketing spin doctors). Indeed, most of those promulgating these Celtic myths are denying the people themselves the control of their own national and cultural identity.Having got that rant out of the way . . If there is an Asturian language at all it's very rare; as was noted Asturia is Spanish speaking. There is a pretty good series of popular songs/tunes from different regions of Spain - I can't recall whether Asturia is amongst the volumes we have.
Oh, and despite the differences between the Spanish regional cultures and traditions, there's also a lot of common influences.
For those with even less modern Spanish history than me, the regional languages of Spain were outlawed during Franco's long rule. In those areas where the strongest opposition to Franco was found there was some concerted effort to preserve the language "underground" - particularly in Catalonia and the Basque Country, and (to a lesser extent, it would appear) in Galicia. It's also fascinating how Spain's long multi-cultural history has shown periods of great tollerance as well as periods of harsh oppression (the Inquisition being even more repressive than Franco . .)
G.