Music Speed Changer online web app lets you change the speed and pitch of audio files on your phone tablet and desktop in real time without affecting the pitch (time stretch), or change the pitch without changing the speed (pitch shift). You can save the altered audio to a new MP3 file. The app is a music looper as well - slow down song speed and loop sections of music for practice.
Music Speed Changer is great for musicians practicing an instrument needing to slow down the tempo or practice in a different tuning, speeding up audio books for faster listening, making nightcore, changing a tracks's pitch or just rocking out to your favorite song at 130%.
To get started, select any audio file on your device by clicking the "Choose Audio File" button