Polyphonic chant is a type of Christian devotional singing developed in the 10th century where two or more melodies or parts are sung together in a composition.
As with anything new, not everyone approved of polyphony.
Some believed that melodic complexity was the work of the devil, who tried to seduce believers through the sin of pride. Pope John XX II was dead against polyphony and in 1324 CE warned his flock not to fall into the satanic lure of musical innovation.
However, such narrow-mindedness couldn’t stop the flow of musical evolution.
As different cultures and musical styles increasingly intermingled, more complex forms of polyphony emerged in the medieval and renaissance eras, like the motet, the rota, the canon, polyphonic masses and madrigals. Another Pope (Clement VI) actually championed polyphony. So not all the Popes were backward looking duds.
The 18th century saw further development of the fugue, which had roots in simpler, medieval compositions. A good, lighthearted example of a modern fugue is found in Glenn Gould‘s “So You Want To Write a Fugue?”¹
Today, the word polyphony takes on whole new meanings with electronic instruments.
Most hardware and software synthesizers allow users to select the number of notes or layers they want to work with. For example, one might set polyphony to 4, 8, 16 or 32. Generally speaking, the higher the polyphony, the more complex the sound. But increased polyphony puts more demand on a computer processor.
Composing a pop song with “phat bass” and lush synth sounds, for example, would probably require more PC power than an ordinary phone or tablet could provide. Great strides are being made to make bigger sounding virtual instruments work on mobile devices and everyday computers. It’s all about clever, efficient software coding to get the most bang out of lighter processors without any unwelcome stuttering, freezing or crashing. If only those owning high-end gaming computers and expensive sound cards could run commercial music software, not too many units would be sold.
Back in the early days of computing I thought all PCs ran at the same speed because information is carried by electricity, and electricity runs practically instantaneously. Ha ha. Not so. Like anything, electronic data transfer follows basic laws and principles much like water moving through plumbing.
A bit of a diversion here, but it serves to demonstrate that polyphony demands more energy than monophonic performances. Be it with human singers and musicians, or with artificial electronic instruments.²
¹ More about polyphonic music thru my LINER notes » http://lnr.li/v5yC3/
² I added “artificial” lest we forget that human beings are also electrical to some extent.
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