Well, it's like this.If I was to forget a single note I would be beaten when I get put back in my circus cage after the show. No only kidding!! With biomechanical guitar parts they're very unorthadox, so it requires many hours of repeatitious practice to actually be able to play the parts,which actually results in the song form & phrases etc becoming engraved in your brain & muscle memory.So when I play a song my hands go into a series of sequences to recreate the music.It's very rare that we play actual chord sequences or recognisable "typical guitar phrases" so it seems to naturally occur that I learn all the parts this way. & "Are you from Earth?" No I'm from Swindon.I don't think that qualifies as Earth does it?