I came across a great article about inductive hearing loops in America, mentioning famed composer Richard Einhorn’s struggle with how difficult it was to be able to enjoy theatre and musicals with inferior assistive device systems.  Hearing loops provided the clarity and enjoyment he so desired.

(Note: New York Times has limited access to their articles online, so the link may ask you to sign up for a subscription, or tell you have temporary access to their articles).

http://www.nytimes.com/2011/10/24/science/24loops.html?_r=2&hpw