Question: When did Russian musika show up?

Is "In keeping with this philosophy, early Russian musika which started appearing in the late 17th century, in what was known as khoroviye kontserti (choral concertos) made a cappella adaptations of Venetian-styled pieces, such as the treatise, Grammatika musikiyskaya (1675), by Nikolai Diletsky." the correct answer?
Pick your answer from:
a). yes.
b). no.
a).