I see but a kind 1 post won’t host my music for streaming :) it should be the same experience as Spotify / Apple Music / Tidal, but with zaps. Fountain could be it, but clear focus is on podcasts and I couldn’t tell ONE single regular artist having their music on Fountain (except hardcore Nostr-musicians :)
I've done some remixes in the past but nothing lately. I always use & recommend regular kind 1 posts instead of any special music app. In the time I've been here plebs.app has popped up from nostr:npub16jdfqgazrkapk0yrqm9rdxlnys7ck39c7zmdzxtxqlmmpxg04r0sd733sv which is a special kind 1 app for videos that seems quite helpful too
Discussion
You're right what we need is a UI that works like existing music apps, but I strongly feel that app should work on kind 1 like how plebs.app uses it for video.
As it stands,not sure if you're saying you didn't know, but you can attach audio files directly in a kind 1 post through many clients, like jumble:
https://video.nostr.build/78c018f587a225a0e886b061d7c6f590cee5cd96a970e5f6842b3cabf4ea8c9f.webm