Learning how to improvise on a guitar is no simple task. It requires a great deal of knowledge of finger dexterity, scales and the right key. To improvise is one of the ultimate aspirations of any rising guitar player.
Have you ever heard an extended guitar solo and thought “How did they do that”? Have you ever listed to one of the classic Grateful Dead jams and were awestruck about how every note sounded great? To get to that skill level is not easy and it requires a lot of time and dedication.
In order to get started with learning how to improvise on the guitar you need to start with the basics. You need to know basic chord structure and what the notes are contained in those chords. Once you have a basic knowledge of this, you can then further develop your skill to learn guitar scales that correspond to the key of the chords you are playing.
To get to an expert level of guitar improvisation you must know how to play individual notes over chords that are in key and sound good. This is the most difficult task in learning how to solo and improvise, but it is vital if you want to sound good.
One of the best ways to get started is to learn basic blues songs. The blues are a good start because you can play simple pentatonic scales over them that usually sound great. Once you get comfortable with this, you can then go on to playing more difficult styles such as jazz.
The key to learning improvisation on the guitar is to constantly practice. The main reason for this is that it is easy to forget scales if you do not practice them often. You ultimately want to get to a point where you can play over a song without thinking about it. To get to that point requires a great deal of skill and practice.
A great way to develop your skills is to play over a backing track. If you have access to a recorder, you can record a few minutes of a chord progression over and over. Then play what you recorded and improvise over it using scales that correspond to the key of the chord progression. Keep doing this over and over and you will definitely develop some great improvisational and soloing skills.
As you can see, improvisation is one of the most difficult areas of the guitar to learn and master. To get to a level where you can play a solo without thinking about it is the ultimate goal, but if you are dedicated and practice a lot you can definitely reach that goal.