International Guitar Orchestra Festival will take place in Prague on the 20th anniversary of Prague Chamber Guitar Orchestra (PKKO). International orchestras from other countries such as Belgium or Mexico will take part in the festival as well as local orchestras. The program will include also workshops and masterclasses conducted by professionals in the field, city tour and interesting lectures. First two days will be dedicated to rehearsals of orchestras including practicing a common Czech piece played by all participants together. The first concert for the festival participants will be held on Sunday 15th November in the Church of St. Martin in the Wall. The highlight of the festival will be concert on Monday 16th November for public which will take place in the hall of a Municipal Library in Prague.