The pitch is changed on a trombone by moving the slide or changing your ombisture.
The hydraulis. It was thought to have been invented by Ctesibius around 465 B.C.
The tuning fork allows for a standard of pitch for musicians that is very reliable and accurate. Before metal tuning forks, pitch was established using wooden pitch pipes. These pitch pipes were not particularly accurate or reliable.
I think there are several versions, but the one that sticks in my mind, is the pan pipes version.
high
The Pipes of Pan was created in 1899.
The "Pan pipes", otherwise known, as, I believe, "reed pipes".
The Pipes o' Pan was created on 1914-10-04.
Pan's symbols include the pan pipes, and the pan flutes
The Pipes of Pan - 1923 is rated/received certificates of: UK:U
germany
The Pipes o' Pan - 1914 was released on: USA: 4 October 1914
Brian Jones Presents the Pipes of Pan at Joujouka was created in 1971.
NO
yes
yes
lots of things