Well, capsing, I’m not entirely sure what you mean, but, yes, he was definitely singing, and he did sing in his own peculiar Cat dialect. I usually just translate for my readers’ benefit.
Here’s a phonetic transcription of “Get up! Get up! Get up!”: /↗ˈaʊːo↘/ The problem is that he yodels the ʊ, and I don’t know how to show that. Linguist followers (if I have any), how do I show that the ʊ goes up and down in pitch about three times?