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.
And music too—dear music! that can touch Beyond all else the soul that loves it much— Now heard far off, so far as but to seem Like the faint, exquisite music of a dream.
Thomas Moore, Lalla Rookh (1817), The Veiled Prophet of Khorassan.
The transition to a low carbon economy by 2050 will involve irreversible step-changes in the cultural, economic and natural domains, with qualitatively different socio-economic configurations before and after. COMPLEX will develop new modelling tools for managing step-change dynamics by working across a wide range of spatio-temporal scales, and integrating the knowledge of many stakeholder communities, for example in respect of land-use change driven by carbon-related technologies.