I've never decided to write a song and then did it...my songs have all been accidents...it just happens...if I sit down with the intention of writing something I may be able to come up with something decent...simply because I've been doing it for nearly 15 yrs and I just naturally have a musical brain...but most likely it would be forced and un-inspirational to me...the best songs write themselves and just come together easily...nothing forced...some don't come together as easily and still end up being cool songs but it always begins with something that was accidental...a chord change that I didn't expect while just messing around on piano, guitar, or bass...I wrote one of my favorite songs of mine completely in my head and it started with a bass line...I just began humming it and it turned into a very catchy tune...sometimes they just fall in your lap...It feels so good when that happens...I live for that experience...