| |--Roy E. Agnew | +--Errors in Keys Press Agnew edition |--William Baines |--( Edgar Bainton ) | +--Errors in Concerto-Fantasia |--Ludwig van Beethoven |--George Lloyd |--Billy Mayerl |--( Arnold Schoenberg ) | +--Errors in Gurre-Lieder |--( Alexander Scriabin ) | +--Errors in Symphonic Poems |--Kaikhosru Shapurji Sorabji | |--Introduction to Kaikhosru Shapurji Sorabji | +--Errors in Opus Clavicembalisticum +--( Karol Szymanowski )