Question: What Russian rock group formed in Leningrad has a bassist who also performed with Avvgust?
Sentence (from "Alexander Titov (rock musician)"): Alexander Valentinovich Titov (Russian: Алекса́ндр Валенти́нович Тито́в ; born 18 July 1957 in Leningrad) is a Russian rock musician, known for his role as bassist of the band Aquarium, position previously held by Fan (Michael Feinstein-Vasiliev).
Relevant evidence: Yes