Most music is recorded in 440Hz. Many people claim that 432Hz resonates more with the heart whereas 440Hz resonates more with the brain, and that 432Hz music feels better. Try it yourself. Play a music in 440Hz and in 432Hz, and see which one you prefer. Most people choose the 432Hz version, and it's hard to go back to 440Hz.
This application uses a very high-quality pitch-shifting algorithm with low CPU usage. It also auto-detects the music's exact pitch for precise tuning.

This application re-encodes your audio files while shifting the pitch to 432Hz. It uses a very high-quality pitch-shifting algorithm.

NOTE: This is only to provide appimages, I am not the developer.