It's all relative of course. But keep on mind that 700 hours is about 4.5 months of full time work. I sure have had epics lasting much longer than that. And the "concert" is just shipping/launching whole I'm already working on the next epic. Maybe later on we bug fix, but we never truly get to "own" a feature the way a musician owns a song and gets to re-perform it in their repertoire.
I'm not really trying to establish which is harder or easier. Just that the pipelines and layoffs differ immensely.
Resting ears. Ear training. Doing your scales. Training your taste. (re)learning old/new tech/tools/instrument/history/theory of music. (re)listening to known/new music from separate styles/periods/cultures. Listening to artists you work for/with. Training/mentoring others.
a modern music producer will literally spend 700 hours on a single song.