You can change the pitch of an instrumental doing by using a program such as Audacity.
Configure your speakers. If it's an audio file, bass boost it in Audacity.
No, Audacity does not currently feature a pitch correction process.
Yes, Audacity the computer music editor totally rocks!
Audacity doesn't have a hard tune pitch correction function.
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You can use Audacity. It is safe and has pitch change and other vocal effects.
Click "File," then "Import," then "Audio." Double-click the music file that you want to import. You can also drag and drop music from Windows Explorer into Audacity.
You should try using audacity it's free and it does the pitch change that you want
copy and paste your music onto a track
Open audacity, add sound or music, highlight the timeline, click on effect, you should see reverse, now click on reverse.
You have to download Audacity. http://audacity.sourceforge.net/ To change the tempo see this tutorial. http://www.richardcravy.com/?p=116