Yesterday, I boosted a post with a music stem separator for Windows. I have since tried it, and it's amazing. The interface is simple and basic, and the outputs of my first test were great. It kept a bit of keyboard in the vocals, but that was the only problem, and it has a bunch of models I could try. https://www.dropbox.com/scl/fo/jnicbs8cjc8orukpe8vhv/AA2n8ya1sWTvldMvyslOk_0?rlkey=au1g8jwx30xub8n9b5uks8gv5&e=1&dl=0