An arpeggio is the notes of a given chord played individually.
As a result of learning arpeggio shapes, you will know exactly where all the chord tones are on the fretboard, which will lead to stronger, and more melodic solos.
Practice these through the cycle of fourths.
Below are some basic arpeggio shapes over a major and minor ii-V-I progression. I will present only a few, but it is important that you eventually learn every arpeggio shape.
Here are the arpeggio shapes for a C major ii-V-I progression. The shapes for D minor 7, G7, and C major 7 are written out.
When practicing, play the shapes ascending as well as descending.
Be sure to transpose these so you can play them in every key.
Here are the arpeggio shapes for a C minor iib5-V-i progression. The shapes for D minor 7 flat 5, G7, and C minor 7 are written out.
The D minor 7 flat 5 chord is the same as a D minor 7th chord with a flatted 5th.