No such thing exists yet. No digital rules them all. Must play on all streaming hardware, all PC (Windows, Linux, and BSD), all iPads and tablets, all Macs, all servers, all smartphones (Apple and Android variants), must be lossless compatible, NO DRM, must be high quality. We need plays on every reasonable thing. All software reasonably modern of the user's choosing. iTunes is not it. Apple music is NOT IT. Every OS, every platform, all must play on all. Must be 16 bit/44.1 Khz or higher minimum. Car audio must have the option to gracefully convert to MP3 or WMA.