Guidi, CARLO

A LESS ANDRO, 1650-1712. Italian lyric poet and dramatist. Guido d'Arezzo, or Are tin us, ab.990-ab.1070. Benedictine monk, long credited with many inventions in music. He undoubtedly began the movement which introduced the lines of the staff; and the use of the syllables, Ut (Do), re, mi, etc., to indicate the intervals of the diatonic scale is traced back to a mnemonic verse from a hymn to St. John which he taught his pupils to sing: Ut queant lax is Res on are fibris, Mira gestorum Famuli tuorum Solve polluti Labii reatum Sancte Joannes. Guido's Aurora (Rospigliosi Palace, Rome). His greatest work is the Aurora fresco of the Rospigliosi Palace at Rome. The portrait of Be at rice Cenci (so called) in the Barber in i Palace is widely known. His Ecce Homos, Magdalens, etc., are known in numerous replicas.