Change tempo without changing the pitch of music

Slowing down the tempo of a fast moving tune can be a very helpful technique for learning the tune.  Here are two software products designed for that purpose.

Audacity -  Free
https://www.audacityteam.org/download/
https://www.lifewire.com/audacity-tutorial-change-songs-speed-without-affecting-pitch-2438167

Amazing Slow Downer - $50
This software slows down music without altering the pitch
Download a Free Trial
https://www.ronimusic.com

Tutorial
https://www.youtube.com/watch?v=72myEL4vLMU


Most Digital Audio Workstations include a feature to slow down music without altering the pitch.