Watch MoviestoWatch. Karel Kryl's concert in Prague's Lucerna, which also featured singer-songwriter and commentator Ivan Hoffman, took place on the occasion of the release of Kryl's album Maškary in 1991. In addition to the title song, other songs from the creative workshop of the indomitable rebel were also performed, including Songs of the Singer Bacillus, Lullabies, From the Echoes of Songs, Caravan of Clouds, Song of Food, Babylon and others.