KDE Minuet - Free music education software, thoughtfully designed to push your musical skills to the next level.
Amazing Slow Downer - !A slow down music software for Mac and Windows computers - Amazing Slow Downer
ChordPulse - ChordPulse is interactive software that’s designed to help you learn music on your instrument.
AudioRetoucher - AudioRetoucher is a tool for analyzing music, changing tempo and pitch in real time
Sonic Visualiser - Sonic Visualiser is a program for viewing and analysing the contents of music audio files.
AudioScrub - Slow down music, change the key, and loop