ZOM  The latest version supports Tiger again.  
(Version 1.2.1)

ZOM  Sorry, but the support for Mac OS X 10.4 (Tiger) has been removed on the latest version.  
(Version 1.2)

ZOM  I released the version 1.1.4 and here is my answers.

1. There is a function "Floater" on Leopard.

It can show the rating of songs using Core Animation.

http://homepage.mac.com/dy4/hitorigoto/files/page0_blog_entry112_2.png

And, you can know the rating of current tracks by the color of Rating Button of Slider.

2. Rotating Slider is available on Leopard.

Since it now uses Core Animation to rotate Slider,

Tiger user can't use this function.

3. I added "Shuffle" menu.

3. Clicking Rating Button of Slider makes Info Balloon show/hide.

5. It's difficult to decrease the RAM usage.

However, I decreased the application size.

I don't add Hot Keys function because this is an iTunes Controller "for mouse".

Thank you for your feedback.   
(Version 1.1.3)

ZOM  Please touch Slider and move cursor to the window pressing control key.   
(Version 1.0.4)

ZOM  iTunesVolume 1.0 is successor to iTunes Volume 9.1.

All codes were rewritten and now it works well on Leopard.  
(Version 1.0.1)

ZOM  You can quit this app from contextual menu of Slider.

http://web.mac.com/dy4/iWeb/zumuya/4736E765-086F-49F0-8D60-F0A2AA81FC01.html  
(Version 8.7)

ZOM  You can click Slider to play iTunes, and when you move Knob to bottom position, iTunes will pause.

Thank you.  
(Version 8.3.3)

ZOM  Thank you.

I released version 7.7.

Now, you can drag Slider in non-float mode with Command-drag.  
(Version 7.7)

ZOM  The Movie:

http://homepage.mac.com/dy4/zumuya/gazou/iTunes%20Volume.mp4

The Screenshots:

http://homepage.mac.com/dy4/zumuya/software_itv.html  
(Version 6.6)

ZOM  please control-click the slider when you want to quit application.  
(Version 6.0)