He has chanted with Vladimir Miller in several concerts dating back to 2005, and has also performed alongside Pasyukov.
Wichniakov has performed the All-Night Vigil of Rachmaninoff (Всенощное бдение) with the USSR Ministry of Culture Chamber Choir in 1986.
In December 2016 Wichniakov has performed in a recording of Rachmaninoff's All-Night Vigil with the Radio Choir of the German MDR radio station in Leipzig under the direction of the Estonian conductor Risto Joost.
A live recording of this performance can be seen on the radio station's official youtube channel.
He is rarely seen without a thick beard, and on occasion performs in an all black cassock.