When I was a young pup, I got a gig with a band who I was a long-time fan of.
Knew the songs inside-out already, so I was clearly going to nail it.
After the first song, the drummer politely says 'that was nice, but can you play about half the notes next time?'
OK... I can do that. Another run through.
'Better. Now play half of what you just played.'
And he was right.