I have a (retired) Cellist friend called Vivien, who by her own admission, claimed to have lived life 'lively & fast' in her heyday.
She often introduced herself as 'Vivace'. After a show one night, she invited me and a couple of other musicians to the (her beloved) Arts Club for drinkies.
During the early hours and clearly ahead in the drinks marathon, 'Vivace' said, " Oh do please keep up, luvvies, I am operating at 175 bpm's tonight".....
A lovely lady, amusing old school character, with a very fitting pseudonym.