|James Tappern plays Tut's trumpet for a 1939 radio broadcast|
With the trumpets back in the news, the BBC has published the article Recreating the sound of Tutankhamun's trumpets which recounts the time they were played for a 1939 BBC radio broadcast. They were fitted with a modern trumpet mouthpiece and bandsman James Tappern played a few notes on each instrument.
If you want to hear what they sound like, follow the above link to the BBC article. It contains a link to an audio of the broadcast and you can listen to the portion where both trumpets are played.
(via Never Yet Melted which has a nice picture showing the carvings on the horn of one of the trumpets)