So did I, but I remembered getting caught out by the same thing in another lesson. Something like "tha mi a' cluinntinn (a) ri MÃ iri". Maybe it's a local dialect?
This misleading. The speaker quite definitely said "Tha i a ro" not "Tha i ro". I agree with Agatha631151. If this is 'fine detail' you need to tell us that this is the case.