1)   Guitar and Drum Trainer 3.3.4
Improve your music playing faster and easier by raising the quality of your practice time. Slow down MP3 music to play and learn at your own pace. Pitch shift music instead of retuning your instrument. Filter sound with a 31 band EQ. Loop music.

 2)   MusicColor 2.5
You can playback or create animated, ever shifting, with variable density image-based JMP music visualizations, experience the music's stereo effect visually while an image changes its colors. The Web site has free music visualizations and images.