youll need to tune your A string down so that the seventh fret matches open G, like drop 
a string up. all morphine songs are in this tuning, and they all use only two strings.

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--7--7-7-7--7--7---------------|
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early to bed, and early to rise
makes a man or woman, miss out on the night life.


right at the end he plays a different note:
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-3~----------------------------|
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               -youll miss out on the night life