"We have no commercial or promotional arrangements to use particular brands," said the spokesman, Neal Allen.

Rather, songs are spare and the arrangements use odd instrumental configurations; all sorts of sounds percolate in the background.

Most arrangements use one field coil per pole.

Some older or simpler arrangements use a single field coil with a pole at each end.

This arrangement uses the most wall space, but it can create a claustrophobic feeling in a narrow room.

To make arrangements to use it, contact the user liaison.

The song's arrangement uses a Latin percussion instrument known as claves.

Another arrangement, uses a radiating dome in place of the usual dust-cap; it is acoustically active.

Both horizontal and vertical arrangements have used the return connecting rod layout.

The arrangements often used them in tandem, to bear down on a sustained dissonance or to entwine one another's lines from below.