I realise this is a tongue-in-cheek title but for anyone unaware, sheet music is a very clinical and skeletal approximation of music. Like the difference between reading I Have a Dream and actually hearing MLK deliver the speech. It's why you can have 1,000 different recordings of a Mozart piano concerto -- and why they're all superior to a PC playing a MIDI file (most accurate representation of sheet music).
Having said that, and despite sheet music being about as far from 'lossless' as a stickman drawing, musicians are particularly good at 'visualising' music. So much so, that a brain scan can't distinguish between a musician actually listening to music and a musician merely replaying music in their head.
Reagan ended his term 36 years ago. Don't make us that old for being there!