technically the standards of streaming and digital are the PCM and dsd formats. you have silver discs, digital tape, files, streaming.......
transports, dacs and adc's. various interfaces. servers, i-pads, phones, storage devices. ethernet, fibre, USB, optical (various) and others for data transfer.
for analog.......
we now have how many pressing types? sizes? vinyl formulations? thicknesses? speeds? equalizations? and then there is tape.
cartridge types? phono pre approaches, SUT's, and circuits? arm types. tt's? OMG!!!!
can we count the stars in the sky?
over air FM?
standards, schmanderds.
let's just not even go down this road.