Question: how to set up qmusic?
Answer: Go to “QTS” > “App Center” to check if Music Station is installed and enabled. Your NAS must be using QTS 3.8. ... 
Go to your mobile device's App store to download Qmusic.
Start Qmusic, select “Add NAS”, and Qmusic will automatically find all the QNAP NAS in the same network.