: Change the key of a song to match your guitar tuning or vocal range.

Riffstation Pro - Free app to slow down music - Active Melody

. The software was officially released as a by Fender several years ago.

The software is designed for Windows 7 (or higher) and macOS 10.10 (up to Mojave). It may not function correctly on newer macOS versions (Catalina and later) because it is a 32-bit application.