What is the difference between “Music Center for PC” and “Music Center” for Android/iOS?

“Music Center for PC” is an application for Windows PCs. “Music Center for PC” allows you to play or manage songs, transfer songs to portable audio devices such as the WALKMAN^®, and play songs using a network-compatible audio device.

“Music Center” is an application for smartphones or tablet devices that run Android/iOS. “Music Center” allows you to remotely operate audio devices, etc., but you cannot transfer songs to audio devices using “Music Center”.