The sound of Welsh?

There was a TV channel in Wales that seemed to be news in Welsh for people learning the language - every once in a while they would translate a word like "constitution" at the bottom of the screen. I don't know whether Welsh is supposed to sound this way or the announcers learned it bilingually / as a second language and just transferred their British accents, but if you didn't actually listen to the words themselves, it really sounded like British English - the rising and falling and overall tone of it. It's similar to the song sung by Italians in "gibberish American English" [embedded below and worth watching for the video alone] - as long as you don't listen closely, it sounds like something you *should* understand.