Guitar and Drum Trainer 3.1.5 descriptions Improve your musicianship & playing by practising smarter & better. Slow down MP3 music to play & learn new songs at your own pace. Pitch shift music in different keys to your instrument instead of retuning. Filter out unwanted musical parts with a powerful 31 band professional level EQ. Set loop points to listen to & practice the same part over & over. Save settings to practice later. Use the Speed Trainer to gradually increase speed.