[Discussion]Separation of rhythm guitar and lead guitar

❓ Questions

First of all, thank you for the great demucs project! I would like to ask if it is feasible to train a new model using demucs that can separate leading guitar and rhythm guitar, and if this could achieve good results. Because I also understand that separating leading and rhythm guitar seems to be an extremely tricky problem. But if it is feasible, how should such a new model be trained? Should it be trained from scratch or based on existing demucs models like 4stems? Approximately how much time would it take to train a model like this?