Immortal Bach

153, is a choral composition from 1988 by Knut Nystedt, derived from the first line of Bach's funeral song "Komm, süßer Tod" (Come, sweet death).

The Norwegian composer Knut Nystedt grew up in a Christian family, where hymns and classical music were part of everyday life.

[2] Among his roughly 300 choral compositions, which account for three quarters of his works,[3] he wrote several pieces of sacred music, including De Profundis, Op.

[7] Vladimir Morosan, a Russian composer and musicologist with a focus on sacred choral music,[8] wrote liner notes for Hyperion Records and described the result as "theology expressed in sound", giving meaning to the phrase "time-less", and as a "glimpse ... of eternity".

The record received two Grammy nominations, and MusicWeb International wrote: "This arrangement is not obvious in vanilla stereo but, goodness, there are some astonishingly long, sustained choral passages that must require phenomenal breath control.

A reviewer called the piece "an amazingly challenging essay in soft, sustained vocal sound".