if you can look at the “circle of 4ths” chart, and visually memorise what the chart looks like.
Then you can recall the I-IV-V chords starting on any chord on the chart.
Ex if your I chord is a Bb7 chord, then go anti-clockwise and you will visually recall the IV chord which is a Eb7 chord, and from Bb7 go clockwise and you will recall the V chord which is a F7 chord.
Similarly if you are into Jazz where you play the II-V-I chords.
ex if your II chord is a G chord, then go anti-clockwise and you will visually recall the V chord which is a C chord, and if you go anti-clockwise again, you will visually recall the I chord which is a F chord.
so if you visually remember where all the letters are on the “Circle of 4ths”, then you can quite easily recall the I-IV-V or the II-V-I chords starting on any chord
