All of Chopin's compositions include the piano. Most are for solo piano, though he also wrote two piano concertos, a few chamber pieces, and some songs to Polish lyrics. His keyboard style is highly individual and often technically demanding; his own performances were noted for their nuance and sensitivity. Chopin invented the concept of instrumental ballade. His major piano works also include mazurkas, waltzes, nocturnes, polonaises, études, impromptus, scherzos, preludes and sonatas, some published only after his death. Influences on his compositional style include Polish folk music, the classical tradition of J. S. Bach, Mozart and Schubert, the music of all of whom he admired, as well as the Paris salons where he was a frequent guest. His innovations in style, musical form, and harmony, and his association of music with nationalism, were influential throughout and after the late Romantic period.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What concept was Frédéric credited with creating?
Ah, so.. instrumental ballade

The court noted that it "is a matter of history that this very practice of establishing governmentally composed prayers for religious services was one of the reasons which caused many of our early colonists to leave England and seek religious freedom in America." The lone dissenter, Justice Potter Stewart, objected to the court's embrace of the "wall of separation" metaphor: "I think that the Court's task, in this as in all areas of constitutional adjudication, is not responsibly aided by the uncritical invocation of metaphors like the "wall of separation," a phrase nowhere to be found in the Constitution."
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Stewart felt the court was not responsibly aided by the uncritical invocation of what?
Ah, so.. metaphors

After a nonprofit organization has been formed at the state level, the organization may seek recognition of tax exempt status with respect to U.S. federal income tax. That is done typically by applying to the Internal Revenue Service (IRS), although statutory exemptions exist for limited types of nonprofit organizations. The IRS, after reviewing the application to ensure the organization meets the conditions to be recognized as a tax exempt organization (such as the purpose, limitations on spending, and internal safeguards for a charity), may issue an authorization letter to the nonprofit granting it tax exempt status for income tax payment, filing, and deductibility purposes. The exemption does not apply to other Federal taxes such as employment taxes. Additionally, a tax-exempt organization must pay federal tax on income that is unrelated to their exempt purpose. Failure to maintain operations in conformity to the laws may result in an organization losing its tax exempt status.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What are some things the IRS looks at in a charity applying for tax exempt status?
Ah, so..
purpose, limitations on spending, and internal safeguards for a charity