I discovered that the formerly easy long sixteenth note twiddly bits (um...I think the proper term is "melisma" or something like that) re now beyond me without a breath at intervals. I used to be able to pop those notes out easiliy. Sigh for the missing lung capacity. Joy for the chance to sing this stuff again. People who get tired of singing Messiah must've sung it more times than I have.
A good, but exhausting, practice. Glad to be back in that harness again. But a late return home and once more I'm up after midnight and the energy has all run out the rathole.