Most of the time, songs are going to start on the I (one) or home chord, go to some other chords (the chord progression) and then return home. The tonal center of the song is what you want to establish in your ear. That’s the key to finding your way around the rest of the chords.
By playing along with one chord songs you have eliminated the problem of figuring out a chord progression which leaves you time to really listen to the one and only chord you have in the song. This will give you time to play different inversions of your one chord, figure out the melody and practice soloing over the chord.
I’ve recently been collecting some great one chord songs which are posted below. If you know of any others, please drop me a note and let me know the titles so I can add them to the list.
Note: To add a hint of tension and groove to the tunes below, try playing them using a Dominant 7th chord instead of a major chord, i.e. C7)
Chain of Fools-Aretha Franklin Key C
Coconut-Nilson Key C
Low Rider-War Key G
The Beat Goes On-Sonny & Cher Key F
Blackjack David-Warren SmiKey E