Guitar maker Fender hopes to rock revenues with digital song-learning app

(Reuters) - Fender Musical Instrument Co will help musicians play along with their favourite songs on their guitars with a subscription service released on Tuesday that will display chords to millions of tunes, the latest effort in the 73-year-old electric guitar maker's digital revenue strategy.Called Fender Songs, the app taps into machine learning technology that analyses songs streamed through Apple Music and generates chord diagrams for the songs. Fender uses human auditors to double check..