Tidal (stylized as TIDAL, also known as TIDALHiFi) is a subscription-based music streaming service that combines lossless audio and high definition music videos with curated editorial.The service has over 35 million tracks and 85,000 music videos.idal was launched in 2014 by Norwegian / Swedish public company Aspiro. It has distribution agreements with all of the three major labels, in addition to many indies.