The antiquity of music at banquets, for example, is attested by sayings as old as Solomon, by bitter comments of Plato, by the account of Xenophon and by passages in the comedies of Aristophanes. The instrumental music at banquets in Plato's time was that of Greek girl flute players and harpers. Early in the Middle Ages the banquet music consisted of any collection of instruments that chanced to be at hand. In an ancient manuscript in the National Library of Paris there is a picture of Heinrich of Meissen, the minnesinger (born 1260), conducting a choir of singers and instrumental performers. The instruments are viols and wooden wind instruments of the schalmei family. A bas relief in the church of St. Gregory at Boscherville in Normandy shows an orchestra of several players. This relief is of the twelfth century. It presents first on the left a king who plays a three-stringed gamba, which he holds between his knees, like a violoncello. A woman performer handles an organistrum, a sort of large hurdy-gurdy, sometimes (as apparently in this case) requiring two players, one for the crank and another for the stops. Then comes a man with a pandean pipe, next another with a semicircular harp and then one with a portable organ. Next comes a performer on a round-bodied fiddle (the usual form of the instrument at that time). Next to him is a harper, using a plectrum, and at the right end of the group is a pair of players, man and woman, performing on a glockenspiel. This orchestra was probably playing for dancing, as no singers are in sight. In a fifteenth century breviary reposing in the library of Brussels there is a representation of a similar orchestra, and this brings us nearer to the era of Poliziano's "Orfeo." The instruments are harp, lute, dulcimer, hurdy-gurdy, double flute, pommer (an ancient oboe form), bag-pipe, trombone, portable organ, triangle and a straight flute with its accompanying little tambour. One of the musicians did not play, but beat time as a director. It is interesting to make a brief comparison between the two representations, for this shows the novelties which entered between the twelfth and the fifteenth centuries. The lute, the trombone, the pommer and the triangle were new acquisitions. If now we refer again to the orchestra of 1518 mentioned by Pauluzo we shall seem to have gone backward. But the truth must be clear to all students that these orchestras were not brought together with any definite musical design. They consisted of the players who chanced to be at hand. Even the letter of the Duke of Milan in 1473 (see Chapter III), in which he announces his intention of engaging a good orchestra from Rome, can hardly mean anything more than a purpose to get as many good instrumentalists as he could.[28]