Nevertheless, it was working out. Though Stanley, left alone below with his stack of palimpsests, and the clean scores onto which he was copying, made more mistakes than he had ever before, some of them maddening, copying the same bar twice; some strange, for here and there he found himself inserting grace notes which broke the admirably stern transitions, slipping in cadenzas which had nothing to do with anything, and, just this morning, writing in a throbbing bass which, as he realized when he stopped, was the steady vibration of the engines.