*Without even root*
Walkman : https://www.mediafire.com/?ijvd2ncb3wx614r
Visualizer : http://www.mediafire.com/download/25...Visualizer.apk
Just Install like Normal APK
*Disclaimer* I found these files from various system dumps of Xperia Devices( as Xperia Z visualizer wasn't working, I used different device's one), PLEASE DO NOT QUOTE THE ORIGINAL POST just Reply.
Press the thanks button
PS If you have flashed Rizal Lovins Walkman, go to system>apps and delete SemcVisualiser.apk from there, and then install the above one as normal apk to work )