Agree podcasts were not made for music but the podcasting 2.0 spec that was subsequently developed was built for it and works well. The underlying nature of RSS is its simply a consensus standard for metadata and reflinks. Music, aside from the media file itself, is all about metadata.
FWIW we started out on nostr and found RSS after. We are in the unique position of understanding the true industry needs beyond that of the consumer only. We are simply in a position that requires us to understand and contemplate vital components of the industry that most people dont ever consider.
As an open protocol, it does not need to "evolve" as the tools around it cam evolve. That's shitcoin thinking. Just like Bitcoin doesnt need the fanciest shitcoin gadgets to be the hardest money on earth, RSS works.
Look at it this way... lets say we want to rebuild the music industry from scratch off the backbone of either RSS or Nostr only.
With Nostr there are no real distribution channels. How many active users (customers) are there? Where is your content coming from? Do you have a ton of artists here posting nostr-native original content? Or are you just gonna snag from YouTube and pretend like nostr is doing music now? You're building from ground up and thats a tall tree to climb.
With RSS, there are millions of users (customers) and thousands of shows (distribution) being published regularly with a significant back catalog magnitude larger than what nostr has, already accruing. There are hundreds of artists and podcasters publishing music RSS feeds right now. All of this with a proper ***dynamic*** metadata transfer workflow. RSS ecosystem has content, publishing and distribution already solved.
And lets talk tech for a moment, two major flaws in nostr preventing it from being usable as a core backbone...
1) it is good with Immutable data but terrible with dynamic data. Metadata records often need to be altered. No delete.
2) Not only are nostr notes static, even if you create subsequent updated copies, its hard to know what is the most recent update due to the nature of relays. If an artist updates their splits and sends a new note depricatinf the previous, how do you know every relay feeding your data also recieved the update? Are you paying people who shouldnt be paid? Are people not getting paid? (Whats your true follower count?)
But that is not to say nostr has nothing to offer. In fact, i believe nostr has two essential core competencies and value-add.
1) digital identity and WoT reputation
This ecosystem has no algos so discovery (distribution) is very important. Peer to peer discovery via nostr social layer is an essential missing part the RSS community has had to slow grind for decades and caps overall growth (artists aren't coming to an ecosystem where its hard to discover)
2) NWC
We have a weird situation where there is no optimal solution. Zaps are fast but lack enough fields to pass enough metadata. Boosts work great but no one supports keysend. Enter NWC. If we can bolt nostr onto rss with a separate metadata delivery NIP (yes, it would be somewhat shoehorning nostr in a bit), NWC, paired with "nostr logins", creates friction less boosting and opens up a whole slew of wallet creation/onboarding options.