Sergey Letov - soprano and baritone saxophones, bass clarinet, alto flute, swanee whistle, composer
Duo started to perform in Bishkek, Kyrgyzstan in 1992 at Jazz Festival.
2004 - Yury Parfenov with Sergey Letov and Sainkho Namchylak at Russian Culture Festival in Rome, Italy
Mostly duo plays at Art Galleries and Clubs in Moscow, but also performed in Tver, Novosibirsk, Krasnoyarsk, Kiev (Ukraine), Tashkent (Uzbekistan)
2004 - Duo Yury Parfenov - Sergey Letov and Sainkho Namchylak appeared at Russian Culture Festival in Rome, Italy
2006 - Duo played at Tashkent, Uzbekistan
Sergey Letov - Yury Parfenov. Secret Doctrine. HOR