Song Surgeon Trainer is our desktop audio slow downer. It changes key and tempo, allows the creation of one looping area for repetitive playing, and has a 9 band EQ. All of these features can be applied in real time. Song Surgeon Trainer allows musicians to access to the power of slowing down and looping audio as a learning tool. Results from our survey of musicians showed that slowing down a song or music piece as a means of practice increased their learning ability by an average of 614%.