Showing posts with label organs. Show all posts
Showing posts with label organs. Show all posts

Thursday, June 30, 2011

How Slow Can You Go?

In Halberstadt, Germany, the medieval St. Burchardi church has become the home of a unique pipe organ designed and built to perform a single piece of music. The performance commenced on September 5, 2001 and is planned to conclude after 639 years, in 2640.

The piece in question is Organ²/ASLSP ("As SLow aS Possible"), written by the influential avant-garde composer John Cage in 1987 and adapted from a work he had developed for piano two years earlier. The revised piece has been performed many times by several esteemed organists, including Gerd Zacher, to whom it is dedicated. It spans eight pages of score, and since the only instruction for pacing is to play as slowly as possible, a typical performance may stretch across several hours.

In 1997, a conference of musicians held a discussion regarding just how slowly the piece might be played. They became inspired to develop a long-term project for such a performance, and wanted to begin in the year 2000; September 5th was selected as it was the composer’s birthday. The location and duration were chosen based on the first documented permanent installation of a modern pipe organ, which was completed in the cathedral of Halberstadt in 1361, or 639 years before the intended starting date of this performance.

The actual start was delayed until 2001. Because the piece begins with a space interpreted as silence which (in proportion to the whole of this performance) spans seventeen months, the first sound was not produced until February 5, 2003. Since then, chord changes have occurred once or twice a year, in keeping with their relative positions in Cage's score, though after 2013 a new chord is not due until 2020. On the dates when such changes are scheduled, hundreds of visitors from around the world gather at the church to witness and celebrate the occasion.

Even aside from the composition being performed, the instrument itself is impressive. Custom bellows, pumped continually by machine, force a constant stream of air through the organ pipes. The positions of the pedals determine which notes are sounded, and these are weighted with sandbags hanging from strings. The weights are adjusted by hand on the designated days. In consideration of the community around the church, a cube of acrylic glass surrounds the instrument to dampen the ongoing sound. Because a well-maintained organ can remain functional indefinitely, it is hoped that generations of attendants will continue the performance through the centuries to come.

While it's clear this performance will be quite lengthy, other compositions are intended to last even longer. A computerized piece by Jem Finer appropriately named "Longplayer" began on January 1, 2000 and is intended to continue without repetition for a thousand years. On a still more ambitious scale, Brian Eno and Danny Hillis have collaborated on a system of ever-changing musical chimes for the Clock of the Long Now, a monumental mechanical timepiece designed to run for 10,000 years. I plan to post more about these projects within the next few decades, so stay tuned.

Tuesday, May 3, 2011

Classic Rock: The Great Stalacpipe Organ

Today, I'd like to take a look at what I consider the most incredible musical instrument in the world: the Great Stalacpipe Organ of Luray Caverns.

Devised in 1954 by Leland W. Sprinkle, a mathematician and electronic engineer at the Pentagon and also a talented organist who studied at the Peabody Conservatory of Music, the Great Stalacpipe Organ is the conversion of 3.5 acres of ancient caverns in Luray, Virginia into a single massive musical instrument.

Sprinkle selected 37 stalactites throughout the caverns that, when struck, produced tones that closely matched the Western musical scale, and fine-tuned them to concert pitch by grinding with a sander (though two were found naturally in tune). He then mounted electronic mallets with rubber-tipped plungers and used more than five miles of wire to connect them all to a large console, custom-built with four keyboards and a pedal board. When a key is pressed, it triggers a particular mallet to strike, and the resulting chime rings out through the caverns.

It took Sprinkle three years to complete the initial stage of his project, which he unveiled to the world on June 7, 1957. His dedicatory recital received much attention from the press; the portmanteau "stalacpipe" was coined by music critic Paul Hume of the Washington Post, and the name stuck. Over the course of another 33 years, further development saw this monumental instrument refined to its present state.

Several recordings of Sprinkle's live performances were made. This is an impressive feat of engineering on its own, considering the size of the area involved and the nature of the caverns. Reverberations of dripping water contributed to the natural ambience of these recordings.

The organ can even be controlled automatically by a system of rotating plastic belts full of holes, somewhat like a player piano (or a very large music box). Visitors to the caverns can still hear the organ played this way; the selections of music are changed seasonally.

Although the Great Stalacpipe Organ is certainly expansive, it is not generally considered the largest musical instrument in the world. That distinction is held by the Convention Hall Auditorium Organ in Atlantic City, which will be the subject of an upcoming post.