Album

Albums of recorded music were developed in the early 20th century, first as books of individual 78rpm records, then from 1948 as vinyl LP records played at 33 ¹⁄₃ rpm. Vinyl LPs are still issued, though in the 21st century albums sales have mostly focused on compact disc (CD) and MP3 formats. The audio cassette was a format used in the late 1970s through to the 1990s alongside vinyl.

An album may be recorded in a recording studio (fixed or mobile), in a concert venue, at home, in the field, or a mix of places. Recording may take a few hours to several years to complete, usually in several takes with different parts recorded separately, and then brought or "mixed" together. Recordings that are done in one take without overdubbing are termed "live", even when done in a studio. Studios are built to absorb sound, eliminating reverberation, so as to assist in mixing different takes; other locations, such as concert venues and some "live rooms", allow for reverberation, which creates a "live" sound. The majority of studio recordings contain an abundance of editing, sound effects, voice adjustments, etc. With modern recording technology, musicians can be recorded in separate rooms or at separate times while listening to the other parts using headphones; with each part recorded as a separate track.

Light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is visible to the human eye and is responsible for the sense of sight. Visible light is usually defined as having wavelengths in the range of 400–700 nanometres (nm), or 4.00 × 10⁻⁷ to 7.00 × 10⁻⁷ m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths). This wavelength means a frequency range of roughly 430–750 terahertz (THz).

The main source of light on Earth is the Sun. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches, which release energy into the living things that digest them. This process of photosynthesis provides virtually all the energy used by living things. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of electric lights and power systems, electric lighting has effectively replaced firelight. Some species of animals generate their own light, a process called bioluminescence. For example, fireflies use light to locate mates, and vampire squids use it to hide themselves from prey.

Demo

Demo may refer to:

Music and film

Computing and technology

2004

2004 (MMIV) was a leap year starting on Thursday (dominical letter DC) of the Gregorian calendar, the 2004th year of the Common Era (CE) and Anno Domini (AD) designations, the 4th year of the 3rd millennium, the 4th year of the 21st century, and the 5th year of the 2000s decade.

2004 was designated as:

Events

January

February

Year of No Light

Year Of No Light (often abbreviated as YONL) is a French post-metal band from Bordeaux formed in 2001. For their début album, Nord, YONL drew influence from several genres, including post-rock, sludge, somber psychedelics and depressive atmospheric shoegaze. The second album, Ausserwelt, was not released until 2010 after a significant line-up change in 2008 which established the band as an instrumental sextet, including two drummers and three guitarists. Ausserwelt saw the band's sound develop in the direction of black metal and doom metal while retaining a progressive, post rock feel.

History

Year of No Light was founded in September 2001 in Bordeaux, France by Johan Sébenne, Bertrand Sébenne, Jérôme Alban and Christophe Mora (Finger Print, Undone,...). Since its conception, Year Of No Light was never a "top priority" band but rather an instrumental side project. After one year of rehearsal, Christophe Mora left the band. Pierre Anouilh succeeded him. One month later, the band played live for the first time.