Albi Cathedral is the meridional interpretation of the national art. The traditions of Rome held tenaciously in southern France, where builders disliked to show the machinery by which their edifices stood. The buttresses at Albi are in larger part hidden within the church under the guise of walls between the side chapels. The flying buttress is uncommon in the Midi. Like Rome again, with her preference for an unencumbered floor space, Albi's immense interior is unbroken by aisles. The vault's diagonals spring over a width of sixty feet--a span unrivaled by any in the north. Albi Cathedral is a vast hall three hundred feet long, one hundred feet high, not high enough for its length, perhaps, but few will regret having the marvelous frescoed ceiling, "the missal of St. Cecilia," brought nearer to the eye. The tutelary of this fortress-church is the gentle patroness of music. Half the fascination of Albi comes from its convincing inconsistencies. It would seem that not Cécile--doubly feminine and gracious under her French name--but Michael Archangel with a brandished sword, should guard this rugged pile. As if the good people of Albi felt the incongruity, they added, long after Bishop de Castanets' day, a southern portal preceded by a porch, the baldaquin, with all its elaborate Flamboyant tracery executed in a creamy-white marble in which surely Cécile, saint though she was, must have felt a personal satisfaction. An architect of genius set that marble porch of Albi against its red time-dulled walls, 'alabaster on corall'; one takes liberties with Chaucer's rime: And southward in a portal on the wall Of alabaster white on red corall An oratorie riche for to see, In honor of the Roman Cicily. To ascend to the marble baldaquin one passes under a fortified sculptured gateway, erected by the Dominican bishop of Albi, Dominique de Florence (1392-1410). The marble portal and porch were executed under Bishop Louis I d'Amboise (1472-1502) and his successor, Louis II d'Amboise (1502-11) his nephew, belonging to an enlightened family all of whose members excelled in affairs, war, letters, and art, leaving their memorials at Chaumont on the Loire, their feudal seat, at Cluny, Paris, Clermont, Gaillon, and Rouen. Louis I d'Amboise also adorned the interior of his cathedral by the sumptuous screen of white stone that surrounds the choir, leaving a passageway between it and the side chapels. The rood-loft, or _jubé_ (so called because from its balcony the clerk chanted _Jube Domine dicere_ before the gospel), is sculptured with the ermine of Anne of Brittany and the lilies of France, being made about 1499, when Anne wedded Louis XII. Bishop Louis at Albi was brother of the king's prime minister, Cardinal Georges d'Amboise.