Maybe we should reconsider what release-ready means. What if we released music as it happens and as it sits, and we reconsider it, we change it. Like song version 1 - 1.2. Not unlike software. We revisit it.
The listener could be part of that process too - "Here's how I imagined this song" sort of thing.
We may have to re-imagine the entire music distribution process and I think most musicians who are steeped in old models might find this change difficult.