Moving the question in this topic in case someone else would like to join the discussion.
besides @siaronjames and @Hendrik.
I’ve checked songs previews, and my favourite is certainly Alcatraz (playing Bibopalwla’R Delyn Aur).
Does anybody know them?
Then, among those I’ve never heard, I would be curious to hear something else by Estella (onthe comp, playing Dim Ond Cysgodion) and Maharishi.
But with names like these, there’s no way I can reach any results in Welsh from Google, too much other stuff with the same names! 