sorry I'm not joking!!

Ok, solo's i can't with my eyes closed!

but the rest is not that difficult, depends on the song.
I bet you can play bands as:
Rammstein,
Metallica
Hammerfall
Anathema
My Dying Bride

with your eyes closed

I even can play Lethe of Dark Tranquillity with my eyes closed.
easy song

but I play it every day, just once

haha

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