Jyrki Korhonen is a Finnish opera singer. He studied at the Sibelius Academy, where his teachers were Jorma Elorinne and Tom Krause. He performed with the Zurich Opera in the international opera studio for the period 1992-1993. Korhonen has been attached to the Finnish National Opera since 2001 to present. Below Korhonen performs Rautavaara's "Waltz of the Innocents," which descends to contra F after 2:13. Rautavaara composed this set of pieces specifically for Korhonen's voice.
Link: Waltz of the Innocents