I have copied this excerpt from a NPR news transcript below
ALSOP: Isn't it nice? It's very pleasant and sunny and sounds like spring time. And, you know, it really belies the enormity of this piece and what's about to happen and the fact that Moller even gave it the subtitle - he only used it for the first two performances - but the Titan, modestly, as he always did, of course.
Is Titan, Moller here? And do the last few sentences means something like: "Though this is a masterpiece which he should be proud of, he is still humble"?