The standard tuning for the guitar, starting with the top string (which is your thickest string), is E, A, D, G, B, E. When you learn guitar chords, the reason that they sound the way they do is because of this tuning. That’s why when your strings are out of tune (either too tight or too loose), your guitar can sound like a train wreck, and people run away from you as you play.
There are alternate tunings for the guitar, the most common of which is called “Dropped D” tuning. To get to Dropped D tuning, simply loosen your top string, E, down a step in the musical alphabet to D.
Sidenote: if you don’t know about the musical alphabet, it’s — A, B, C, D, E, F, G, A, B, C, D, E, F, G with the sounds getting higher as you go forwards. If you look at E in the chain of notes, notice that D comes before E, therefore D is a lower sound, and that’s why they call it “Dropped D,” because it’s literally lower in sound.
There’s also tunings where you take EVERY string and lower it by a step in the musical alphabet, so E becomes D, A becomes G, D becomes C, etc.
Here’s a list of alternate tunings you can experiment with, you’ll need a guitar tuner! Remember the first letter in the series is your TOP string, the thickest string. You’ll have to think about how to get to the letter. If you start with an E, you’ll be going LOWER to get to C, because the alphabet is A, B, C, D, E, F, G. Notice that C is two steps LOWER than E. Give it a try!
Open C: C, G, C, G, C, E
Open D: D, A, D, F#, A, D
Modal D: D, A, D, G, A, D
Open D Minor: D, A, D, F, A, D
Open G: D, G, D, G, B, D
Modal G: D, G, D, G, C, D
Open G Minor: D, G, D, G, A#, D
Open A: E, A, C# E, A, E
The word “open” in this case means that all of your strings are tuned to sound like a nice chord without having to put your fingers down on any of the frets. Modal is a word in music theory that basically means a shift in starting position in the alphabet. So, instead of starting on A, you could rewrite the alphabet like this, F, G, A, B, C, D, E
Much Respect,
The Musician’s Toolbox