Misc Computer Games – Portal 2 - Halls Of Science 4 chords

Some fun chords from Valve's game Portal 2.  This song is during the Cave Johnson part
of the single player campaign and is pretty recognizable.  You have to listen to the
recording if you want to find out how to arpeggiate the chords.  If you use a square 
lead it can sound pretty cool.

C E7 Am Fm Eb
Bb F# B E7 C

It just repeats from there.  The beat is kind of weird but again just listen to the song
for guidance.
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