You have to preselect part of your files and cannot load all files.
You can use for this:
- drag & drop with some folders in the explorer
- right mouse context menue in the explorer
- advanced query syntax in the explorer (e.g. genre:rock or year:>1980<1990) in combination with the above
For using the advanced query syntax you have to include your music-folder(s) in the windows indexing.
If you've done so it gets very very fast.
https://msdn.microsoft.com/en-us/library/aa...1(v=vs.85).aspx
With this syntax you can filter on some music tags too.