Sistine Chapel ceiling restoration began on 7 November 1984. The restoration complete, the chapel was re-opened to the public on 8 April 1994. The part of the restoration in the Sistine Chapel that has caused the most concern is the ceiling, painted by Michelangelo. The emergence of the brightly coloured Ancestors of Christ from the gloom sparked a reaction of fear that the processes being employed in the cleaning were too severe and removed the original intent of the artist. The problem lies in the analysis and understanding of the techniques utilised by Michelangelo, and the technical response of the restorers to
Sistine Chapel Choir "Any kind of guerilla action against Vatican II does not produce good fruits. The council's principles by now are untouchable." In 2010, Massimo Palombella, a Salesian priest, was appointed to replace Liberto as head of the choir. In September 2015, Deutsche Grammophon released a CD recorded in Sistine Chapel with the choir, the very first recording allowed there. Authorised by Pope Francis, he ruled that profits from sales of the album must be used for charity purposes only. On September 26, 2017, the Sistine Chapel Choir made their first visit to Canada, hosted by St. Michael's Choir School, at St.