“Havana” only has three chords, played over and over in more or less the same order, but there’s no doubt this song is a banger. Try improvising on top of the simple progression with some G Minor pentatonic
Though present in folk, bluegrass, blues, and occasionally in rock, chord melodies are most prominently played by jazz guitarists, and chord melody playing is a big goal for many of them. A working knowledge of harmony (being able to play lines and chords through any common chord progression...