Seth probably knows the answer to this query

[DuFresne]

It used to frustrate the hell out of me in high school that my chorus class was always in the morning when I was almost a full bass, but all the concerts would be at night after I'd lost a good deal of low-end. Now I almost only take part in men's groups, so I can stay at a nice, comfy mid-range all day without forcing myself deeper than I probably should.