It's interesting to hear the variations, I often wonder about where certain dialects come from. I'm sure we must mix up pronunciations from different places, depending on how well we remember them or how easy they are to say. I often wonder if I'd sound like I'm island hopping, Skye one minute then Lewis the next :)
Yes, but I think this speaker best illustrates some of the shifting pronunciation that occurs (i.e. that which depends on the ending sound of the previous word) «an cat» → ... "an gat" etc. Some of that could be the influence of generational and/or geographical dialects - I guess?