Pulse Master is audio player-tool which supports most of the common audio formats and it is capable to :
- Speed up or slow down the music tempo without affecting the music key (pitch)
- Change the music key (pitch) without affecting the tempo
- Change the music "speed" as if vinyl records were played at higher or lower rates than intended
- Export modified audio to new file (6 audio formats supported)

Someone could ask about purpose of such audio modifications. Besides some purely fun implementations like :
- Morning coffee substitution with 30% faster song you found appropriate (opposite, relaxing effect could be reached by slowing down music)
- Prank with your friend's favorite singer or group you don't like so much
- Letting your kids play with "chipmunk" and "bear" voices (they will adore it for sure if you find right song)

There is a variety of situations you can use Pulse Master as a serious, professional tool : - musicians could slow down and...