Music streaming is a crowded space - dominated by big tech players charging $10 a month for unlimited streaming. But upstart "high fidelity" services, backed by celebrities like Jay-Z, now offer premium services that come with premium price tags. Tidal, for example, charges twice as much for "better quality", uncompressed music streaming. But can anybody even hear the difference, and are these more expensive services worth it? Chemi checks it out - putting CNBC personalities to the test.