So, I am making very good progress on version 4. It looks like I will be able to start the beta early October. I am currently working on the last big feature (remote control) and after that will focus on tying up loose ends before the beta. The beta will miss one big feature in the beginning and that's iCloud Sync. I want to take my time getting this right and I want to have a long running beta phase to make sure the rest of the app is working satisfactorily. So the plan is to focus in October on making the app with the current features stable, then implement iCloud Sync in November and focus on preparing the release in December.
And here are two appetizers 😃

That's the basic user interface. Not too different from version 3 but nevertheless very important improvements like:
- Folders for Songs and Playlists
- Notes for Songs shown in the list
- Current playback mode always visible on top
- Big region buttons
- New playback modes for regions: Skip, Pause, Loop Once
- Assignable Buttons at the lower end of the lyrics
- Context sensitive buttons beside the play / stop button
- One tap to open / close Songlist or Playlist view on the left
And some more:

A full mixer 👍️ with AUv3 plugin support in the buses (multiple plugins for each bus). 16 buses each routable to a different output if you like. An audible metronome and a beautiful equalizer. And volume meters so you can visually see if you are running your tracks too hot.