There are 3 basic elements to a modern song:
There are 3 basic parts to a song:
If you look at 12 bar blues in E you'd get this:
E is the statement
A is the re-statement - (it is usually played slightly different but similar to the E chord)
B7 is Phantasmagoria - (It is played different then either)
You can then go to a chorus and keep the same chords but change how you play them using your chorus as the re-statement, and play the bridge any way that makes sense to you (you can also change keys for effect) as long as you end up back at the statement again.
Or try this approach that sticks to the rules but gives you ideas:
Pick a key, any key...
How about G major?
That gives you some notes to work with:
G, A, B, C, D, E, F#
This then gives you some chords:
G, Am, Bm, C, D, Em, F#dim.
Then pick a chord progression like say - I, vi, ii, V, I So that is:
G, Em, Am, D, G
Use a D7 chord rather than the D as it shows perfect cadence and will sit better. So your progession to work with is now:
G, Em, Am, D7, G
To be clever you could pick an alternative chord sequence for the middle 8(same notes and chords but start with say Em, that would get into knowing about minor keys. Don't forget that if you are sticking to the rules once you have a key you then have all the notes to play with which give you the chords, so to find the progression you want it is a case of playing all different progression till one jumps out at you that you like and sounds good.
Those are just some ideas that stick to the rules, music is not maths but you need to know what is what. I am going to put up a post of keys and scales so check that out too, if you already haven't.
MUSIC HAS 3 BASIC ELEMENTS: MELODY, HARMONY AND RHYTHM.
RHYTHM (A BEAT)