How many institutions own Ampex'?

As musicians, it is notable that some of the finest musicians and most highly acclaimed institutions are largely responsible for the progress made in the field of electronic music. This is not an isolated crowd; rather, it includes celebrities such as Stokowski, Boulez, Stockhausen, and institutions including Columbia University, Princeton University, and Stanford University, as well as many highly active and advanced studios in Europe. The beginnings of true electronic music were received with such profound appreciation. Time Magazine and the Today show featured the experimental composers and their works, an indication that they were well-received by conventional musicians.