This tune is from the JamZone where we take a look at creating lovely harmonies from just 1 scale.
This second guitar provides the main melody but does have a bassline too. The Thumb picks the same bassline as guitar 1, but half as many times. The fingers play the melody on the higher strings.
All the notes are from the E natural minor scale:
E - F# - G - A - B - C - D - E
Give it some practice, there are some simple but useful techniques here.
Now listen again to the mp3 audio of both guitars together. Notice how just 1 scale and 2 guitars playing quite similar things can provide lovely intricate sounding music. Great harmonies don't require a diploma in music theory to make! They can be surprisingly simple. The problem for most guitarists is that it involves 2 guitars. In this day and age, this is easily remedied...
Record Yourself!
Get your hands on some recording software. Professional packages such as Cubase, Pro-Tools, Cakewalk, Logic, Adobe Audition are available. These do cost, but if you are serious about making your own music they are really the best way to go. The quality of plugins and compatible music software is far better than the free recording packages. However, you should always dip your toe in the water first, and the best free online recording software is Audacity. It's not the frilliest package ever made, but more than adequate for recording yourself and making multi-track recordings (which you need to record instruments separately, but play them back simultaneously).
There are plenty of tutorials on the web about using audacity and it'll get you started on the recording path.
Recording yourself is invaluable. Not only will it help you make music with more than 1 instrument. It provides a great feedback loop. That means you can record your own wild experiments and see what works and what doesn't. You'll also be able to hear your own progress over time with each recording you produce. You can also pinpoint areas you need to refine in your technique from recordings you make. Sometimes sitting back and listening to yourself helps you get new musical ideas too!