Classical guitar use with an added lower string tuned to A. This produced A-D-G-B-E, one of a wide number of variant tunings of the period. The low E string was added during the 18th century." This tuning is such that neighboring strings are at most 5 semitones apart. There are also a variety of commonly used alternate tunings. Classical guitar The classical guitar (also known as the nylon-string guitar, or Spanish guitar) is a member of the guitar family used in classical music. It is an acoustic wooden guitar with strings made of gut or nylon, rather than the metal strings used
Classical economics is some debate about what is covered by the term "classical economics", particularly when dealing with the period from 1830–75, and how classical economics relates to neoclassical economics. The classical economists produced their "magnificent dynamics" during a period in which capitalism was emerging from feudalism and in which the Industrial Revolution was leading to vast changes in society. These changes raised the question of how a society could be organized around a system in which every individual sought his or her own (monetary) gain. Classical political economy is popularly associated with the idea that free markets can regulate themselves. Classical