I have 7 zones in my system and the bottom bar on the new app still confuses me every time I use it.  From what I can tell:

• If I click the album art or the currently playing song, it will pop up the “player view” for my current zone
• If I press the round button with 2 rectangles on it, I can manage my zone (and volumes).  But if I misclick the round button, it will pop up into the “player view”
• If I touch the volume slider, I can manage the volume of each set of speakers in my current set of zones
• If I swipe up on bottom bar, I can then flip to manage other zones in the house

My brain knows all of this, but I seem to do the wrong thing every single time I try to use this damn app.  I think the UX team was too clever by about 50% when designing this.

Also, I’d strongly prefer it to default to my zone that is currently playing music when I open the app.  It seems to default to a random zone whenever I open the app.