Music is an art form and cultural activity whose medium is sound organized in time. 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 vocal techniques ranging from singing to rapping; there are solely instrumental pieces, solely vocal pieces (such as songs without instrumental accompaniment) and pieces that combine singing and instruments. The word derives from Greek μουσική (mousike; "art of the Muses"). See glossary of musical terminology.
In physics, sound is a vibration that typically propagates as an audible wave of pressure, through a transmission medium such as a gas, liquid or solid.
Carpenters' and ironworkers' shops are dominated by the heavier sounds of machinery and occasional yells across the floor; in goldsmiths' shops the silences are punctuated by more delicate work noises, but the apprentices' sullen silence and the artisans' grim absorption in the work at hand are, if anything, more oppressive, although there may be a little amiable banter between a master goldsmith and an older apprentice clearly already in possession of advanced technical skills.
Michael Herzfeld (2004). The Body Impolitic: Artisans and Artifice in the Global Hierarchy of Value. University of Chicago Press. p. 81. ISBN 978-0-226-32914-7.