Hope this is the right place

Title says it, but yeah wanna write an instrumental song. I really like Joe Satriani and how expressive it is. So, like Satriani, I want to know more about how you make it sound more like a song than just a massive guitar solo.

So structure, melody, rhythm etc

After a lifetime of study you may not get it.

Learn song forms - ABBA, modified ABBA etc

Learn chord interactions with melodies.

Then you play fill in the blanks.