How to write music if you already know music theory

1. Do I need to know music theory to write songs?
2. Does music theory teach you how do you write music?
3. How do you write a song even if you don't know the music theory?

Do I need to know music theory to write songs?

Musical theory is just the rules about how music actually works. Yes, there are some variations between classical and jazz and contemporary, but those differences come down to genre conventions and terminology. It's all the same basic stuff, and the more you know about theory, the more you know about songwriting.

Does music theory teach you how do you write music?

The theory behind music is able to give your ideas a powerful new context that gives you not only a more informed view of every chord progression you've ever written but also ideas on how to write better ones in the future.

How do you write a song even if you don't know the music theory?

Start with simple keys like C, F, D, or G. If you play an instrument, try to play the chord progressions by ear. Improvise a simple melody over the chord structure. Once you are comfortable with the chord progressions, try to improvise a popular chord progression under your lyrics.