You need to look no further than Apple's iPhone to see how fast brilliantly written software presented on a beautifully designed device with a spectacular user interface will throw all the accepted notions about pricing, billing platforms and brand loyalty right out the window.

It's interesting that the book publishing industry, on the iPad, has much more flexibility than the music industry had.

As my other obligations are beginning to take an inordinate amount of time, I have asked to step down as WMG's board chairman, effective January 31, 2012. However, I will remain a director of the company and in that way, continue my association with Warner Music and its extraordinary people.

To turn $100 into $110 is work. To turn 100 million into $110 million is inevitable.

Commercial success still hasn't come to an artist that isn't signed to a record label. There are very few artists that can succeed without the help of a record label. The role of the record label is still required, it's still necessary.

It strikes me as hubris that Universal will buy EMI. What it will do is create a super-major that will have far too much power... I think when Universal goes up over 40 percent market share, I don't see how reasonable regulators can countenance. It will impact not just labels, but artists and cultural diversity.

The iPod made music mobile, but today, how many devices do you need to walk around with? You want it on just one. And inevitably that's going to be the phone.