In the 1840s, Xyndas began to compose concert arias and songs in demotic Greek, a contribution that eventually resulted to the creation of the opera called O ypopsifios (The Parliamentary Candidate) in 1867.
During the 1840s, Xyndas composed vocal works in ancient Greek dialect, which ultimately resulted in the development of the opera O ypopsifios (The Parliamentary Candidate) in 1867.