I am mobile DJ and have been for 15 big years! There is nothing to stop a mobile Dj analysing their tracks.
Huge collection? Analysis it at home
Have to take every track to the disco with you in case uncle Bobby asks for some special song? yes having let auto analyse run on your entire collection at home one evening will give you the power to search
Might get handed a usb flash at a disco by the birthday man or the groom or the retired person? Then it won’t be a big collection they hand you, it will be 1 to 20 songs and those can be found easy by pointing the source at the usb flash and the prime will analyse the tracks as you load them.
There is nothing anti-mobile about prime