Much of what you described in your use case works as you want on my iPhone on my library.

Note, I didn’t say you tagging was bad or wrong, I said the iOS app didn’t like it. When I first started transcoding my flacs to mp3s it took a bit of tweaking of the tags until iTunes worked well with them.

And yes, the on the fly stuff is very much there.

I think however it only works for whole albums (on MacOS it works for individual songs):

- start playing whole library (from albums screen)
- go and find a new album
- open the screen for it
- tap on the three dot button
- tap play next

You are now in up next mode, if you tap on a single song now it will ask you if you want to clear the up next playlist or not.

I believe however you are stuck with only play now, not play next. And it plays the song you select AND the rest of the album it is in before carrying on with your existing up next playlist.

You are now

I tried to take a video to show all this, but audio playback doesn’t work I when you use the screen recording feature is on.

P.S. the empeg way of operation you described was not how I used my empeg 😉