Most closets are in the bedroom which is great. The room has soft furnishings already in it (e.g.: beds, curtains, rugs, clothes). Standing in front of the open closet is optimal or if you have a walk-in, even better. Make a part in the clothes on hangers and place your mic (whether its on a shelf or a mic stand) in between the parted clothes without letting the clothes touch the microphone. Additional blankets behind, to the sides, and above you are ideal. The goal is to absorb as many reflections from the room as possible.
If you’re a songwriter interested in the legal grey areas of using other people’s music, check out our recent article on the basics of legally covering and sampling songs.