This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: This March 20, 2018 file photo shows the Spotify app on an iPad in Baltimore. Credit: AP Photo/Patrick Semansky, File Every day, millions of people use Spotify to stream music. A few years ago, it would've felt like an impossibility: Click, and bam—a seemingly endless catalog of recorded music opens up, right at your fingertips. ...