(Death Metal Symphony in Deep C) is the fourth studio album by Finnish band Waltari, combining death metal with classical music.

After the show's premiere performance in 1995 at the Helsinki Music Festival, it was recorded and finally released in May 1996.

By the end of 1994, Hatakka got in contact with Riku Niemi, a Finnish conductor, composer and leader of Avanti!

The premiere show was performed by Waltari on 22 August 1995 at the "Taiteiden Yö" festival in Helsinki (Helsinki Music Festival), Finland together with Avanti!

Death Metal Symphony in Deep C was released in Germany, Austria and Switzerland.

features the story of John Doe (Kärtsy Hatakka) whose life is being controlled by a central "computer brain" (Tomi Koivusaari).

An angel (Eeva-Kaarina Vilke) helps John Doe defeat the computer brain, but without this controlling force John Doe feels lost.

At the end the libretto says "everybody simply decides to vanish into thin air and disappear into the pages of internet!"

The album features long passages of purely classical music, inspired by composers such as Beethoven and Sibelius.

However, for most of the album, the music varies between "symphony orchestra with a backing death metal band" and "death metal band with a backing orchestra".