Here is an excellent overview of the general principles and conventions which defines the music publishing business:
http://www.digitalmusicnews.com/permalink/2014/02/28/understandpublishing
It is a little lengthy, but it will give you a thorough overview of the different aspects you need to understand if you are to make the most of your music copyrights. Do remember that this article was written from a US perspective, and Canadian copyright differs slightly in a few respects, but overall, we follow the US on a majority of these principles
If you have specific questions on music publishing that aren't covered by this article, feel free to contact me (serge@musicnovascotia.ca) for a consultation, and we'll do our best to find you an answer.
Restructuring efforts at Avid maker Pro Tools are far from returning faith in the company by the stock market.
Financial site The Street reports today on the state of the company’s stock. Most troubling, yesterday Avid received a letter from NASDAQ delisting the company from the stock exchange. As of today, trading of AVID was halted on NASDAQ. (This doesn’t mean you can’t still trade AVID stock; you have to do it via the Over-the-Counter market.)
The really significant issues here are cash flow and earnings, and Avid’s ability to report on their situation – and losing NASDAQ trading will only exacerbate the problem. TheStreet Ratings Team looked at losses and negative cash flow.
http://createdigitalmusic.com/2014/02/avid-maker-pro-tools-now-losing-money-faster-delisted-nasdaq/