Song Surgeon Trainer functions as a song player that allows you to open an audio file and make changes in key and tempo for practice purposes. It is a free music slow downer that enables you to slow the tempo of a song down, and then set up a loop to isolate a segment for repeated playback. Song Surgeon Trainer also has a built-in key change or pitch shift function which allows you to change the music ½ step at a time, while listening in real time.
