Spotty on PiCorePlayer

Hi folks, Trying to get Spotify running on LMS, but when I open the "Connect to a Device" window in the Spotify app, it doesn't show the my PiCorePlayer LMS... Any suggestions?
FYI, piCorePlayer is version v4.1.2, Spotify app is 1.1.12.449.g4109e645, running on my Mac (OS 10.11.6)