Be aware of the type of file you export your music as. MP3 files are common, but not all programs export to MP3. Some only support WAV or specific project file types. Using a second program to import a file and export to the file type you need works, but may
very slightly impair sound quality. Research the program before you buy/download it!
(By the way, I think Graal uses both MP3 and MIDI files, so you shouldn't have too many problems with files.)
@Talon, nice avatar.