LATELY -- compared to web radio app station playlists, on-demand ad-supported streaming with custom playlists seem to be preferred, since services such as YouTube and Spotify have grown more. Among the on-demand streaming player giants, July and March Billboard reports by Cherie Hu and Ed Christman suggest Apple Music and Spotify significantly pulled ahead with their advertising/subscription-based service model. Oftentimes, subscribing allows for unlocking enhanced features of music applications and stopping advertising from interrupting the music experience.