hmm..I'm a recycled rocker and what helped me alot is this..first off know your major scale and your major penatonic scale use this as your base for the "I" chord.. Next let's take the C Major scale and number it C=1,D=2,E=3,F=4,G=5,A=6,B=7-this pattern needs to be commited to memory because it will not only help use to target certain notes when we play/improvise leads on the fly but also helps us to understand some basic chord theory as well like the nashville number system for instance. The 1,3&7 are your main fellows,you flatten the 3rd=E to Eflat and it becomes a minor third,and likewise flatten the 7th and becomes a dominate 7-=B to Bflat.. The 6th=A note gives our major penatonics an old western swing type type flavor "C6". and the 5th =E note is a good target note as well.. The B note or 7th is called a leading tone cause it wants to resolve back to the C note. Try like B then a D then back to C for example.. My father is a good lead player on both fiddle and guitar and he mostly just uses chord tones numbered like this.when a song goes to the forth chord "F" again same thing only now we use the F major scale mainly 1,3,flat 7th mostly,song leaves there and goes to say "G Chord" then again the 1,3, flat7 of the G major scale or if the song goes to "A" then the 1,3, flat7 of the A major scale then back to G to C or to where ever again.. Only playing scales without these target notes I feel that it tends to make us sound like we're running up and down a ladder and it's really easy to start our leads on the wrong scale degree.. As my dad always tells me when you take a lead you are leading other instruments and this"sets it up" tells them that we are fixen to change chords..srry didn't mean to write a essay here lol..