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Performance is the physical expression of music, which occurs when a song is sung or when a piano piece, electric guitar melody, symphony, drum beat or other musical part is played by musicians. In classical music, a musical work is written in music notation by a composer and then it is performed once the composer is satisfied with its structure and instrumentation. However, as it gets performed, the interpretation of a song or piece can evolve and change. In classical music, instrumental performers, singers or conductors may gradually make changes to the phrasing or tempo of a piece. In popular and traditional music, the performers have a lot more freedom to make changes to the form of a song or piece. As such, in popular and traditional music styles, even when a band plays a cover song, they can make changes to it such as adding a guitar solo to or inserting an introduction. A performance can either be planned out and rehearsed (practiced)—which is the norm in classical music, with j...

Philosophy of music is a subfield of philosophy. The philosophy of music is the study of fundamental questions regarding music. The philosophical study of music has many connections with philosophical questions in metaphysics and aesthetics. Some basic questions in the philosophy of music are: What is the definition of music? (What are the necessary and sufficient conditions for classifying something as music?) What is the relationship between music and mind? What does music history reveal to us about the world? What is the connection between music and emotions? What is meaning in relation to music? In ancient times, such as with the Ancient Greeks, the aesthetics of music explored the mathematical and cosmological dimensions of rhythmic and harmonic organization. In the 18th century, focus shifted to the experience of hearing music, and thus to questions about its beauty and human enjoyment ( plaisir and jouissance ) of music. The origin of this philosophic shift is sometimes att...

Modern music psychology aims to explain and understand musical behavior and experience. Research in this field and its subfields are primarily empirical; their knowledge tends to advance on the basis of interpretations of data collected by systematic observation of and interaction with human participants. In addition to its focus on fundamental perceptions and cognitive processes, music psychology is a field of research with practical relevance for many areas, including music performance, composition, education, criticism, and therapy, as well as investigations of human aptitude, skill, intelligence, creativity, and social behavior. Cognitive neuroscience of music Cognitive neuroscience of music is the scientific study of brain-based mechanisms involved in the cognitive processes underlying music. These behaviours include music listening, performing, composing, reading, writing, and ancillary activities. It also is increasingly concerned with the brain basis for musical aesthetics and ...

Many ethnographic studies demonstrate that music is a participatory, community-based activity. Music is experienced by individuals in a range of social settings ranging from being alone to attending a large concert, forming a music community, which cannot be understood as a function of individual will or accident; it includes both commercial and non-commercial participants with a shared set of common values. Musical performances take different forms in different cultures and socioeconomic milieus. In Europe and North America, there is often a divide between what types of music are viewed as a "high culture" and "low culture." "High culture" types of music typically include Western art music such as Baroque, Classical, Romantic, and modern-era symphonies, concertos, and solo works, and are typically heard in formal concerts in concert halls and churches, with the audience sitting quietly in seats. Other types of music—including, but not limited to, jazz, bl...

The music that composers and songwriters make can be heard through several media; the most traditional way is to hear it live, in the presence of the musicians (or as one of the musicians), in an outdoor or indoor space such as an amphitheatre, concert hall, cabaret room, theatre, pub, or coffeehouse. Since the 20th century, live music can also be broadcast over the radio, television or the Internet, or recorded and listened to on a CD player or Mp3 player. Some musical styles focus on producing songs and pieces for a live performance, while others focus on producing a recording that mixes together sounds that were never played "live." Even in essentially live styles such as rock, recording engineers often use the ability to edit, splice and mix to produce recordings that may be considered "better" than the actual live performance. For example, some singers record themselves singing a melody and then record multiple harmony parts using overdubbing, creating a sound...

The music industry refers to the businesses connected with the creation and sale of music. It consists of songwriters and composers who create new songs and musical pieces, music producers and sound engineers who record songs and pieces, record labels and publishers that distribute recorded music products and sheet music internationally and that often control the rights to those products. Some music labels are "independent," while others are subsidiaries of larger corporate entities or international media groups. In the 2000s, the increasing popularity of listening to music as digital music files on MP3 players, iPods, or computers, and of trading music on file sharing websites or buying it online in the form of digital files had a major impact on the traditional music business. Many smaller independent CD stores went out of business as music buyers decreased their purchases of CDs, and many labels had lower CD sales. Some companies did well with the change to a digital forma...

Non-professional The incorporation of some music or singing training into general education from preschool to post secondary education is common in North America and Europe. Involvement in playing and singing music is thought to teach basic skills such as concentration, counting, listening, and cooperation while also promoting understanding of language, improving the ability to recall information, and creating an environment more conducive to learning in other areas. In elementary schools, children often learn to play instruments such as the recorder, sing in small choirs, and learn about the history of Western art music and traditional music. Some elementary school children also learn about popular music styles. In religious schools, children sing hymns and other religious music. In secondary schools (and less commonly in elementary schools), students may have the opportunity to perform in some types of musical ensembles, such as choirs (a group of singers), marching bands, concert ba...