Based on several (rather popular) songs I've heard recently, I'm pretty sure I could create successful music using the following process:
1) Write down some seemingly coherent lyrics. Do not edit these lyrics. The original "flavor" is desirable. Typos are ideal.
2)Randomly select several notes, then randomly assign them note lengths, sufficient to fill 2-5 minutes.
3) From a music book (why think when I can use a book?) randomly select chords based on some of those notes, and then, randomly intersperse them in place of some notes.
4) "Hire" a 3 year old to bang on pots and pants for the desired duration. Insert product as drums.
5) Omit bass entirely. Apparently harmony is overrated.
6) Generate vocal line by randomly select which notes on the melody to sing, while replacing the other notes with more randomly selected notes and chords.
Don't give away my system. This type of methodical analysis takes intense time and effort.