Acoustic music

Acoustic music is music that solely or primarily uses instruments that produce sound through acoustic means, as opposed to electric or electronic means. The retronym "acoustic music" appeared after the advent of electric instruments, such as the electric guitar, electric violin, electric organ and synthesizer.

Performers of acoustic music often increase the volume of their output using electronic amplifiers. However, these amplification devices remain separate from the amplified instrument and reproduce its natural sound accurately. Often a microphone is placed in front of an acoustic instrument which is then wired up to an amplifier.

It has its origins in the folk music of the 1960s. Following the increasing popularity of the television show MTV Unplugged during the 1990s, acoustic (though in most cases still electrically amplified) performances by musicians (most notably grunge bands) who usually rely on electronic instruments became colloquially referred to as "unplugged" performances. The trend has also been dubbed as "acoustic rock" in some cases.

Terminal

Terminal may refer to:

Travel and transport

Electronics, telecommunication, and computers

Terminal (electronics)

A terminal is the point at which a conductor from an electrical component, device or network comes to an end and provides a point of connection to external circuits. A terminal may simply be the end of a wire or it may be fitted with a connector or fastener. In network analysis, terminal means a point at which connections can be made to a network in theory and does not necessarily refer to any real physical object. In this context, especially in older documents, it is sometimes called a pole.

The connection may be temporary, as seen in portable equipment, may require a tool for assembly and removal, or may be a permanent electrical joint between two wires or devices.

All electric cells have two terminals. The first is the positive terminal and the second is the negative terminal. The positive terminal looks like a metal cap and the negative terminal looks like a metal disc. The current flows from the positive terminal, and out through the negative terminal, replicative of current flow (positive (+) to negative (-) flow).

Terminal (band)

Terminal was an American rock band from Mansfield, Texas.

History

Formation and How the Lonely Keep

Formed in 1998 under the name Letter Twelve, the group signed to Tooth & Nail Records in 2004 and changed its name. The band's first, and only, release under this name was entitled How the Lonely Keep, and in 2005 they went on tour with labelmates Anberlin. The record hit number 39 on the Billboard Top Christian Albums chart in 2005. Matthew Tsai of Absolute Punk called the record "one of the great emo releases of the 00's". Melodic.net compared the group to Anberlin, Jimmy Eat World, and Third Eye Blind.

Shortly after the release of the album, all of the band's members except for lead singer Travis Bryant departed the group during their tour with The Spill Canvas and Rufio; Bryant toured with Terminal as a solo act for the remainder of the tour. Bryant found replacements for the members later in 2005 and continued to tour behind the album, touring with Saosin, He Is Legend, The Juliana Theory, Cartel, The Working Title, Codeseven, The Receiving End of Sirens, and Yesterdays Rising. Terminal split in January 2006.

Chemical substance

A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e., without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys.

Chemical substances are often called 'pure' to set them apart from mixtures. A common example of a chemical substance is pure water; it has the same properties and the same ratio of hydrogen to oxygen whether it is isolated from a river or made in a laboratory. Other chemical substances commonly encountered in pure form are diamond (carbon), gold, table salt (sodium chloride) and refined sugar (sucrose). However, in practice, no substance is entirely pure, and chemical purity is specified according to the intended use of the chemical.

Chemical substances exist as solids, liquids, gases or plasma, and may change between these phases of matter with changes in temperature or pressure. Chemical reactions convert one chemical substance into another.

Chemical (disambiguation)

A chemical substance is a material with a specific chemical composition.

Chemical may also refer to:

Version

Version may refer to:

Computing

Music

Albums

Other uses

See also