The "sound" of the Classical era included what?

La música clásica es la corriente musical que casa principalmente la música producida o basada en las tradiciones de la música litúrgica y secular de Occidente, principalmente Europa Occidental. Abarca un periodo de tiempo que va aproximadamente del siglo XI a la actualidad, aunque esta definición no es aplicable a la música realizada en el siglo XX a pesar de presentar las mismas características,1si bien las principales características del género fueron codificadas principalmente entre 1550 y 1900, que es habitualmente considerado como el período característico de producción de la música clásica.

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b) a state law could be declared illegal if it contradicted the constitution.

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the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

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i know social security wasn't one.

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hope my answer has you!