Rotation and tempo

Hi there,

I am new to ActionScript and hope someone can help.

1. I want the user to be able to activate a ball (ball_mc) which will rotate around a circlular ring (ring_mc).

2. I want the user to be able to control the speed or tempo at which this ball moves around the ring.

3. One rotation of the ring will equate with a bar of music. Therefore the user should also be able to decide on the beat length of the ring in musical time i.e. 2,3, 4, 5, 6, 7, 8, 9, 10, or 12 beats.

4. On the ring the user will also be able to place movie clips which represent percussion sounds (duration_mc) and I therefore also want the ball_mc to trigger the percussion sound when it encounters the duration_mc.

5. I want the percussion sound triggered to be determined by the colour of the ring_mc and the user should be able to drag different coloured rings on to the stage. I have created an empty movie clip called canvas_mc to house the rings and I have seven different coloured rings which will each have a different associated sound.

All very complicated. Any help would be greatly appreciated.
Cheers!
Farmerito