the help provided isn't doing that much for me. How do I change the key of a track?

Studio 7 / Fusion: Right Click the tune in the Playlist and select "Adjust Track Settings.." or select the track and hold down Ctrl+T.

Click up/down arrows next to the box marked Key adjustment.. this then changes the Key by Semitones.

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In Studio 6/Pro 6: Right Click the tune in the Playlist and select Properties... or select the track and hold down Ctrl+E.

Click up/down arrows next to the box marked Key adjustment.. this then changes the Key by Semitones.

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As far as I can see this is pretty much what is said in the Help file tho'