People who play in covers bands need not answer this poll. If you play originals, what role do you have in the songwriting? Do the songs evolve through collaborative effort, or does someone write the song and give out a demo? What input do you have into the process? How much freedom do you have in deciding what to play? Who has the "final say" in what a song does? Do you often ask other musicians in the band to play in a particular rhythm or scale, etc? Do you write lyrics? Sing backup? The quintessential "songwriting instrument" is in most people's minds an accoustic guitar (or perhaps a piano). How viable a "songwriting instrument" do you think the bass guitar is?