I load up the raspberry pi and on the screen i have several warnings to do with ‘alsamizer configuration’ and the web client not being found.
I have to do something to do with extension configurations or disable the extensions to silence these messages…
I know they are confusing but those particular warnings can be safely ignored. Everything there actually looks like it will work. Did you actually try connecting to the webclient?
No, that should only be necessary to use the Spotify service and even if it was enabled, it shouldnt stop Mopidy from starting. Can you try to login (via USB keyboard, or by enabling SSH access in settings.ini and connecting remotely) and have a look in /var/log/mopidy/mopidy.log for any errors and also try running /etc/init.d/mopidy status to check that Mopidy is running.
Oh! Not to worry, glad it’s now working for you. You did have me puzzled.
If you can, try getting the musicbox.local hostname to work. It’s much easier than trying to remember an IP address, only for your friend to come over and have their iPhone steal the IP address.