What if you wanted to pep up your progression by ... be labelled as I – ii – iii – IV – V – vi – viiº, where upper case Roman numerals denote major chords and lower-case numerals ...

Using MIDI over USB, it plays the I-V-vi-IV progression in any key. It plays in chord mode, arpeggiated mode, or mixed mode at any sensible tempo. You can check out a video of the 4chord playing ...

The presence of a well-crafted and performed chord progression can often ... Chords I, IV & V are all major, whereas chords ...