Watch the Chord Progressions online guitar lesson by Henry Johnson from Jazz Expressions
Let's talk about chord progressions: They are just chords that are in a sequence, which makes up all songs. You'll find that thousands of songs are made up of the same chord progressions. A ii-V-I for example, is a chord progression that you'll hear in several different genres of music. So, if you learn how to play over those chord changes, it sets you up so you can master how to improvise over them as well.