Music too fast? Learn how to slow it down here....
If you have Microsoft’s Windows Media Player (WMP), you can change the speed at which
files play in the Player. For example, you can slow down the playback speed if it
helps you to sing along with the music.
Play a file in WMP, and then switch to Now Playing mode.
If you’re in the Player Library, click the Switch to Now Playing button in the lower-right
corner of the Player.
Right-click an open space in the Player (such as to the left of the Stop button),
point to Enhancements, and then click Play speed settings.
Move the Play Speed slider to the speed at which you want to play the file, or click
the Slow, Normal, or Fast links.
To select speeds between the labeled play speeds, in the Play speed settings dialog
box, clear the Snap slider to common speeds check box.
To hide the settings, click the Close button in the Play speed settings dialog box.
For the Apple QuickTime player, right click on the control bar and select “play speed”