Peter Tranchell wrote this setting of Psalm 121 in 1962 for unison voices and organ in B flat. The score published here is a later 197? transposition in A. 

A responsorial psalm setting written in 1962 and revised in 1968 and 1976, the latest version now published by CMS in "Peter Tranchell, Three Responsorial Psalms" (CMS 046)