Piano abstract of the most beautiful Czech Christmas Mass with solo voices and mixed choir. | Cast: solo S, A, T, B - coro place - 1.0.2.0. - 2.2.2.0 - tp - org - archi. Text: Czech and German. | | Jakub Jan Ryba (1765 - 1815) was a rural teacher and is the author of more than 1100 songs. Of the thirty