What is the theme of Hindemith's opera Mathis der Maler?

When did public concerts first begin to be offered in the larger cities in colonial America?

A) late seventeenth century B) early eighteenth century C) middle of the eighteenth century D) late eighteenth century

Which of the following is the correct Roman numeral analysis for this sequence of triads in the key of Ab major?

A. I, II, vi B. i, iii, v C. VI, VII, V D. I, ii, vii° E. vi, V, iv