Creating a song requieres both; planing and good ear.
So, I`m gonna tell you what I do.
-Start writting on paper your Scale.
-Harmonize the Scale
-Make chord diagramas
-Make a chord progression, you can fallow the circle of fifths, or use common
progressions for your style of music; or you can order the chords in an order that sounds good to you.
-Record your chord progression, play it back and start jaming a little using the scale that
you selected before, make use of all the techniques you know, such as:
hummer on, pull off, slides, finger taping, bends, pinch harmonics, etc.
Also use intervals, string skiping, sweep arpegios and so on. Here is where
the ear and personal style comes into action.
-Record your song and make sure to writte it on Tabs.
I`m sure the rest of the guys here can give you some ideas on how they meke their songs.
Good luck
Someday I`ll play like in my dreams.equator's Music Page..