Original sentence: By the late 1920's, there were over 7,000 organists employed in theatres across the United States.Current theatre organists include Steven Ball of Ann Arbor's Michigan Theater, Rosa Rio and Rob Richards.In Australia there are also many wonderful musicians who play the Theatre Organ, with Tony Fenelon, John Giacchi and Chris McPhee being the most prolific.John Mann, Simon Gledhill, Nigel Ogden, Len Rawleand Michael Wooldridge are just a few of the many British organists who play regularly to audiences throughout the world.Others such as Jelani Eddington have active concert schedules and continue to promote the instrument and its preservation through their worldwide travels and brilliant musical talents.Phil Kelsall, resident organist of the Tower Ballroom Wurlitzer in the world famous Blackpool Tower, is arguably the most well known in England and plays mainly in a unique style called the Blackpool Style, which was originally developed by Reginald Dixon, a previous resident organist.There are many other full- or part-time Theatre Organists in other parts of the world, with a large proliferation in the United Kingdom.Today, there are only a few of those original silent film organists still alive