When it comes to guitarsolos most guitarplayers, or at least the ones starting out, tend to think about the single-string guitarsolo, the part which breaks up a song and uses single notes to create a melody or a short riff. Most guitarsolos being played in Popular Music or Rock or Blues use this method, but the guitarsolo can also be a guitarplayer on his/her own who plays an entire song on the guitar where chords and single-string notes get combined all into one piece of music. 
For this article I will mainly focus on the single-string guitarsolo since this is the most popular method, and also  the most accessible for beginners on the guitar. Playing songs where you combine chords and melody all into one piece of music is a beatiful way of playing the guitar, but maybe this is something beginners can try after they are more comfortable with their fingers, and when those early, open chords start to sound really how they should sound!!

Okay, so now we know what we are going for: Playing single-string notes on the guitar, not as a chord, but as a single note. Right, but there there are still a lot of options we have, and we need to know what we want to do during that time when we play the guitarsolo, otherwise it all will sound like mud and chaos.

Throughout the times different guitarplayers have approached the guitarsolo in different ways: There are the ones who simply recite the vocal melody during the guitarsolo. Simple but effective as it creates variety in the song. Then there are the players who treat the guitarsolo as a mini-composition within the song. This approach is more ambitious and pleasing at the same time for your creative powers. Some players even use the intro as part of their guitarsolo, then they may play some varitions based on the intro riff during the rest of the solo. Examples of this approach? A lot of Angus Young’s solos from AC/DC fall into this catergory. 
All about notes then you may wonder? No, there are also guitarplayers who let loose with their effects during their solos, they may just make some wonderful noise created by effects and the notes they use may not relate to the chords or melody of the song at all.

For next article I will use a lot of videos as examples of different ways to solo over (or within) songs.
See you soon,
Eddie