Had a play with Max2Play and had Spotify, DLNA, Airplay and a Google Home (via BT) all working. Does not seem very robust however. I keep losing all audio. Will have to have more of a play next weekend (or look at Volumio again).

It's been along time between firmware updates on the AA. If we had BT working then you could pair a cheap Google Home to it and it would give Spotify.

HT:M80,VP150,QS8,EP500 Outside:4xM3 Office:AudioBytes, Rumpus: M60,VP150,M22 Portable:2 x Airs