I'm so happy of having found these musics in such an appropriate file format! It's smaller than MP3, and it's way better for editing. Thanks to Dr. Spa for sharing it!
Unfortunately, some tunes did not play well for me - Warcow probably had the same problem! I tried to arrange them, and managed to do it without changing the melody.
IF YOU HAVE TROUBLES with this version of the music, try to DOWNLOAD THE ARRANGED VERSION I published.
What's new? 
Slovak version