It
needed only to add to this flute a keyboard and bellows to make one of
those pretty instruments the first painters used to put in the hands of
angels. As it developed and gradually became the most grandiose of the
instruments, the organ, with its depth of tone modified and increased
tenfold by the resonance of the great cathedrals, took on its religious
character.
The organ is more than a single instrument. It is an orchestra, a
collection of the pipes of Pan of every size, from those as small as a
child's playthings to those as gigantic as the columns of a temple. Each
one corresponds to what is termed an organ-stop. The number is
unlimited.
The Romans made organs which must have been simple from the musical
standpoint, though they were complicated in their mechanical
construction. They were called hydraulic organs. The employment of water
in a wind instrument has greatly perplexed the commentators.
Cavaille-Coll studied the question and solved the problem by
demonstrating that the water compressed the air. This system was
ingenious but imperfect, since it was applicable only to the most
primitive instruments. The keys, it seems, were very large, and were
struck by blows of the fist.
Let us leave erudition for art and primitive for perfected instruments.
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