Just to post something musical that isn't sketchtember.
I like going back and remembering how certain pieces started. For example, this one's moment of inception happened when I had some rhythm/melody in my head I was trying to get out - and thankfully that little piece of noodling on my keyboard is preserved.
I recommend to listen to the post's music file first, and to the full track after.
Oh, and here's the very first sketch too.