Spot on Silvia!
I learned about targeting chord tones from an improvisation perspective and then realised that song melody targeted chord tones in the same way. You’ve found it by comparing chords and chord melody.
Although these great discoveries have been made millions of times before us, they are still big discoveries for us and move us forward in our playing and understanding of music.
Have you seen Richard’s @Richard_close2u topic in the “Tips” category about targeting chord tones using a Chet Atkins lesson? Chet Atkins lesson
It’s very good! Richard, as ever, gives a very thorough explanation of how it works and some exercises for you to play around with.