This is the second new personalized playlist from a major music streaming service that appears to be influenced by a concept pioneered elsewhere. SoundCloud Weekly, announced last week, is a mimic of Spotify’s popular Discover Weekly playlist. Although some listeners may naturally gravitate toward whatever outlets they’ve been using for the longest, the more parity streaming services reach with their programming, the easier it will be to compare their curatorial skills. Most discovery playlists still center on algorithms, while Apple Music has insisted that the human ear is superior. If one or two services successfully stand out with their ability to deliver fresh tunes, that could give them an edge in a very competitive market.