Hi Eddie.

As you probably know, it's quite common for session players to write their own parts from the chord sheet, but none of them would claim to be co-writers. It just makes sense for the composer to use the skills that are there - who better to suggest a bass part than an experienced session bass player? Similarly, the producer will have a lot of input to the final content of the song.

The thing is, none of this can happen until someone comes up with an original chord sequence, melody and lyrics and in my view, this person is the real composer. If this task is shared, then it becomes a collaboration.

But I suppose this is pretty much what you were saying, anyway.

ROG.