Re: This is why the music copyright term extension seemed pointless.
The composer copyright in the UK/EU is now 70 years after death.
There was an anomaly where some works expired after 50 years under the old rules - and then they came back into copyright a few years later when the period was changed to 70 years. Apparently no one is sure what an English court would decide about the copyright of such works if the holders tried to enforce that.
The "Happy Birthday" tune was written in 1893. It was copyrighted in 1935 - and with renewals in the USA enjoys a 95 year period to 2030 (2016 in the EU). It is calculated to have had the highest aggregated royalties for a song. The recent BBC4 programme "The Richest Songs in the World" estimated £30m so far.