Keep in mind that quality control is still a thing here, even at this early stage. If a resource that you're posting is a WIP, please state so in your post. Also state if you wish to have others improve it or not. Being in this thread doesn't guarantee that your resource will make it in, but it will greatly improve its chances.
To get the ball rolling, here's a short midi that could be the base of a location's (maybe a dungeon) BGM :
archives.mid (available for improvement)