You can simply de-tune your E to low C in the obvious way - i.e downwards! - but if you are having problems hearing a tuning reference point then play the harmonic on the 5th fret of the G string and then hit the harmonic on the 5th of the E string - it's pretty easy - alternatively you'll need a sensitive tuner to get an accurate reading on your low string - it really isn't rocket science.
You can simply de-tune your E to low C in the obvious way - i.e downwards! - but if you are having problems hearing a tuning reference point then play the harmonic on the 5th fret of the G string and then hit the harmonic on the 5th of the E string - it's pretty easy - alternatively you'll need a sensitive tuner to get an accurate reading on your low string - it really isn't rocket science.
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The fifth fret harmonic on the G is a G (double octave). Do you mean tune the 7th fret harmonic on the E to this?
If you play the fifth-fret harmonic on a low C (previously your E) string and the G at the same time, you will be playing a perfect fifth, which is quite easy to tune. Violinists, violists, and cellists use this method to tune. It sounds cool, too.
