Thanks @d6jg , I'll look at how to access the material plugin from Android. I also plan to look at Symphonium.
Probably a silly question but am I right to assume that using either of these options will just bypass the Wimm Home App and I will not lose any features, quality or performance this way?
Thanks also to @Burnside and @rccarguy.
Use wiim app for setting up the device and using it's own apps
Use lms when playing back your own local music