Originally Posted by ToadWarrior
How do players like Chris Squire and Mike Rutherford memorize these lines to the point where they can play them the same every time?
Simple answer: I doubt they are playing it the same way every time. Remember they wrote the songs. They are probably going for a feel more than the actual individual notes.
Instead of thinking: this note, now this note, now this note. They are thinking: this chord, this chord, nice little run here, signature riff here. The only part they memorize is the signature riff. Because it is them, they will basically play it close to the same way every time.
Does that make sense?