Not coding, but my daughter Aelyth and I are a musical duo. Our first album (https://sidesister.bandcamp.com) took four years to complete thanks to COVID lockdowns and living in different cities.
On Thursday evening we rendezvoused at an equidistant AirBnB to sketch out our second album. It's now Sunday morning, Aelyth's just caught the train home because she's working today, but we have a concept, a title and ten songs for the new album!
There are admittedly another seven song ideas we've not had time to explore, but we've accomplished much more, much more quickly, than either of us thought possible. We've also committed to an overall musical style, plus boundaries on arrangements and instruments with the intention of keeping the production phase as concise as possible.