You're listening for the high-pitched flutey sound that is created OVER the sound that he's making with his mouth. Don't focus so much on what he's doing that you miss the actual overtones. You might need to close your eyes.
One thing I've noticed is that some of the less familiar verses in familiar hymns often become my favorites, not only as lyrics but as poetry. I was struck by these lines in "Fount":
O
to grace how great a debtor daily I’m constrained to be! Let Thy
goodness, like a fetter, bind my wandering heart to Thee. Prone to
wander, Lord, I feel it, prone to leave the God I love; here’s my
heart, O take and seal it, seal it for Thy courts above.
Because I know I am indeed "prone to wander." I've wandered in the past and I'll wander in the future. In fact, I'm wandering right now . . .
I also love these lines from "Our God Our Help in Ages Past":
Time, like an ever-rolling stream, Bears all its sons away; They fly, forgotten, as a dream Dies at the op'ning day.
Do you have any favorite third, fourth, fifth, etc., verses?
We're going to be singing this today -- rehearsal is in about an hour. I checked through the You Tube offerings and I really like this Korean choir's performance:
Jazz pianist Yosuke Yamashita, 66, plays a burning piano on the beach
in Shiga, Ishikawa Prefecture. He was showing his appreciation for his
old piano that he no longer uses. -- Japan Today