Ok Chaps here goes...
The key to all this is piCorePlayer, the latest release 3.11 is available here...
https://sites.google.com/site/picore.../home/download
...you'll need some SD imaging software, and an ipscanner if you want to use a wifi dongle, I'll go into that in more detail if anyone wants later.
For a single machine LMS&Player (IQaudio/Audiophonics/HiFiBerry etc.), you'll need the following
piCorePlayer 3.11 (audio enhanced, it has a few more drivers)
Pi3 or Pi2 (I've used a Pi3 but the Pi2 should be fine if a little slower at indexing)
A music data source, a NAS if you have one, or a USB powered HD (again fine with the Pi3 & it's PSU, not sure about the 2)
If you want to use wireless, one of these, (the Pi3's onboard wireless is rubbish!)...but do't use it if your music is on a NAS, it'll take hours to index over wifi!
https://www.amazon.co.uk/d/Networkin...e+usb+realteck
A reasonable micro SD card, this is where LMS will store it's local 'index' and 'cache', so worth getting something decent I used one of these...
https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1
After downloading and imaging piCorePlayer to the micro SD card, connect your pi to the network/router via ethernet, and power it up.
Using your IP scanner find 'piCorePlayer' on your network
Copy the IP address into your browser and enter, you should eventually get the piCorePlayer page
Go to the 'Main Page' tab, and open up advanced mode, it's at the bottom of the page
On the main page, under advanced operations you'll see 'resize FS', this will expand the SD to it's full extent, NB. when you make significant changes piCorePlayer will reboot and save it's settings, and in this case it will.
Now go to the LMS tab, you'll see an option to install LMS, click that and you'll be rebooted again...
If you want to use a local HD, you'll probably want to install the 'additional file systems' option, again on the LMS tab, it'll reboot again
For Local HD;
Connect your HD, go to the main page and select reboot, upon reboot go to the LMS tab you should see your HD in the USB section, give it a logical name at the /mnt (mount point) eg 'Music' or somesuch, when you first go into the LMS web page you'll be asked to select this as your music catalogue, then hit 'set USB mount'.
For NAS;
Just provide the IP address, network share name (the name you see in your windows explorer if it's mapped), and user ID/PW combo, then hit 'set net mount'
Open up a browser session and paste in the pi IP address suffixed by ':9000', this will open up the LMS browser, and after configuring your 'Music' share, it's a pop up, you should be able to build your catalogue (NB never unplug or power off the pi whilst LMS is rebuilding the index as this is the only time the SD card can be corrupted), you'll also see 'picoreplayer' as an active 'player' in the drop down list
At this point you're up and running...hopefully
FYI The Pi3 indexed (complete rebuild) 30,000 flac tracks locally in 30 mins, and 35 over the LAN, very impressive