Why do some of the music plots have blank sections 10-seconds in length?
This is MixMeister’s way of saying that it could not accurately read the file. While this same file may play just fine in WinAmp, MixMeister is a little more demanding about reliable playback. Try rebuilding the MP3 file again and reimport it into MixMeister. If the source is not available, try converting the file to WAV format and then back to MP3. You can use Music Match (www.musicmatch.com) for this purpose.