22:32World Business ReportFirst broadcast 2018/02/28 22:32 GMT: Spotify Files Unconventional Share ListingBBC World Service Duration: 27 minutes Wed 28th Feb 2018, 22:32 on BBC World Service East and Southern AfricaAvailable for over a yearListen nowSpotify will launch shares on Wall Street valuing the company at up to $23bn. Show more GenresFactualMoneyFormatsBulletinsBrandWorld Business Report Source: BBC Online