When playing a 2-5 progression, here’s a way to add a few interesting chords in between.
The principle is that you walk up from the 2 chord to the 5 chord.
i.e. 2 3 4 ♭5 5.
Alternatively, to make it easier, you can take out the 4 and walk up as follows:
2 3 ♭5 5
An example of this is:
2minor7 1maj/3 4maj7 ♭5(with a quartal chord of its flattened 7th note) 513
The fourth chord there deserves more explanation.
Let’s assume we are in the key of D♭, what does a ♭5 (with a quartal chord of its flattened 7th note) mean?
Well, first ♭5 tone of D♭major will be G.
The 7th note of G major is F
Then we play a quartal chord of F (F B♭ E♭) on the right hand over G on the left hand.
In the key of D♭ the walk-up will be as follows
|E♭minor7||E♭||B♭ D♭ G♭|
|D♭major / F||F||A♭ D♭ F|
|G♭major7||G♭||F B ♭ D ♭|
|G (with a quartal chord of its flattened 7th note)||G||F B♭ E♭|
|A♭13||A♭||G♭ B♭ D♭ F|
Below is a recording of the first variant:
And of the second variant.
I use the second variant in Thank You Lord posted earlier. See if you can spot it!