Tim Jonze of The Guardian facetiously reviewed Sleepify, stating that the "opening track 'Z' certainly sets the tone, a subtle, intriguing work that teases the listener as to what may come next.
A similar concept emerged in June 2015 via a website known as Eternify, by the band Ohm & Sport, which allowed users to play the first 30 seconds of any Spotify song on a loop, thus accumulating royalty payments for the artist [REF].