Spotify hopes going public will cement streaming as music's future

As music industry celebrates second straight year of growth, service hopes to buck trend of tech industry disappointments on Wall Street

The world may love the services they provide, but the new generation of tech companies haven't found much love on Wall Street recently. Spotify, the leading music streaming service, is hoping to change that with a share sale that could lead another round of "unicorns" to try their luck on the US stock markets.