A free program for Android, by Hipxel.

Reverse Music Player is an audio player which is able to play your favorite songs in the reverse order. You can also modify the audio to add different effects.

You can save the modified audio so you can listen to it later. If you want to have more fun, you can also change the tempo of the music track.

The app is compatible with many audio formats. It supports MP3, OGG, FLAC, MP4, WAV, and more.

You can also use the equalizer to get more sounds.