Re: how do i download music to my galaxy s5
Usually you just connect your phone to a PC via USB and it should show up as a Media Device. You can then drag and drop the files onto your phone just as you would any other thumb drive.
Now, since the phone connects in Media Mode, not in USB Storage mode, your computer doesn't see it as an actual drive, and some apps might not recognize the phone as a storage destination, so your best bet is to do the transfer using PC's File Explorer.
You can also transfer files using Samsung Kies via USB, or via WiFi using Kies Light or any 3rd party file-sharing app. Bluetooth, of course, is also a slower possibility.