How to use Xbox Music for Windows 8.1?

- I want to use Xbox Music to play local music. The files in the music folder in the library that are automatically added in the collection can't be played (it can be played directly in the Explorer). Please check if it is in use, file location, and What should I do with the network proxy settings?
- I want to re-add the following, but I found that I can't select all the songs to be removed from the collection. When the metro application adds files, it seems that I can't use all the selected ones, or just ctrl+A can't Use, is there any other way to choose?
- If there is a change in the playlist, the song being played will start from the beginning.
1.xbox music can be selected, just select first An "album", then Ctrl+A to select all. Or select a song in the "Song" column and select all with shift.


but two or more Delete under Select situation is all the songs in the recycle bin, instead of clearing the music information in the xbox music.



2. just want to rescan all the songs in the set is recommended to delete the music has been added to the position, and then add it again. Xbox music will automatically rescan music files.
3. I have never seen this situation during use. Try to edit the list being played during playback, delete or add music, and the songs that are playing in the list still play normally, without starting from scratch.