on this website THE ANCIENT GREEK ORGAN HAD AN HYDRAULIC MECHANISM: VIEW AN ANIMATION FOR THE FIRST TIME THE MEDIEVAL ORGAN OF OOSTHUIZEN IN HOLLAND: IT WAS NEW IN 1518  AND LOOKED LIKE THIS ABOUT THE OLD ORGAN OF THE FAMOUS SAINT BAVO CHURCH IN HAARLEM: SAENREDAM PAINTED IT AND THIS IS AN IMAGE OF THE FRONT IN BOIS-LE-DUC IS THE IMPRESSIVE SAINT JOHN’S CATHEDRAL: INSIDE THE MOST BEAUTIFUL RENAISSANCE ORGAN OF THE WORLD THE ORCHESTRA WAS CREATED THANKS TO THE OPERA AND THE OPERA THANKS TO THE GREEK THEATRE A SHORT HISTORY OF 400 YEARS MP3 AND PDF FILES FOR ORGAN  PIANO AND CHOIR AND TRY ETUDES FOR ONLY 6 FINGERS - NO THUMBS AND INDEX FINGERS Some pages are not translated