Buy Tchaikovsky at the Organ!

Jonathan Vaughn is a British-American organist, choral director and accompanist.  Currently Associate Director of Music at Christ Church Greenwich CT, he has also held positions at The Cathedral of All Saints, Albany NY, Wells Cathedral, St Edmundsbury Cathedral, St John's College, Cambridge and St George's Chapel, Windsor Castle.  He regularly performs as a recitalist around the USA and UK and he has released two CDs of orchestral transcriptions.  There is a full biography here and details of forthcoming recitals and other appearances are on the relevant pages.

Jonathan at Wikipedia
Jonathan at organrecitals.com