I play only covers and I have not had any problem with getting them flagged by FB. They use bots to find copyrighted material, and they generally can only find stuff that has been issued as a recording and has an embedded code that the bots can read. If you are playing the songs live the code is not present for the bots to catch. If you are singing along to pre-recorded tracks, those can have codes embedded that the bots will flag.

Hi Don! Great question. It all depends on the song – you would have to look up the copyright for individual songs. For the most part, most tracks are only flagged if they are professionally recorded and distributed to Spotify, but it is OK to play them for a Live or even a YouTube video (but not all the time – depends song to song).