Xbox

Xbox is a video gaming brand created and owned by Microsoft. It represents a series of video game consoles developed by Microsoft, with three consoles released in the sixth, seventh, and eighth generations respectively. The brand also represents applications (games), streaming services, and an online service by the name of Xbox Live. The brand was first introduced on November 15, 2001 in the United States, with the launch of the original Xbox console.

That original device was the first video game console offered by an American company after the Atari Jaguar stopped sales in 1996. It reached over 24 million units sold as of May 10, 2006. Microsoft's second console, the Xbox 360, was released in 2005 and has sold over 77.2 million consoles worldwide as of April 18, 2013. The successor to the Xbox 360 and Microsoft's most recent console, the Xbox One, was revealed on May 21, 2013. The Xbox One has been released in 21 markets in total, with a Chinese release on September 29, 2014. The head of Xbox is Phil Spencer, who succeeded former head Marc Whitten in late March 2014.

Music

Music is an art form and cultural activity whose medium is sound and silence. The common elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics (loudness and softness), and the sonic qualities of timbre and texture (which are sometimes termed the "color" of a musical sound). Different styles or types of music may emphasize, de-emphasize or omit some of these elements. Music is performed with a vast range of instruments and with vocal techniques ranging from singing to rapping, and there are solely instrumental pieces, solely vocal pieces and pieces that combine singing and instruments. The word derives from Greek μουσική (mousike; "art of the Muses"). In its most general form, the activities describing music as an art form include the production of works of music (songs, tunes, symphonies, and so on), the criticism of music, the study of the history of music, and the aesthetic examination of music. Ancient Greek and Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound."