"The horns and big band sounds should be so crisp and clear and sometimes it was, but not all the way through..."
This is a true. A recording of a show about the creation of music needs to be expertly adjusted and presented. The show is an entreaty to appreciate live music; it should soar and lift the audience. I'm baffled by the disappointing quality. Maybe someone here with knowledge of the challenges of getting a performance on film could amplify. It doesn't make sense, the muted section and the occasional volume lapses.
"I'm a comedian, but in my spare time, things bother me." Garry Shandling