Tournemire's "L'orgue mystique" consists of 51 "office" (organ masses), one for almost each Sunday of the liturgical year plus the principal feasts (Christmas, Assumption, etc.). Each office, but one, is composed of five pieces : Introït, offertoire, elévation, communion and postlude, written on the gregorian themes for the considered Sunday. This file groups the first four movments for the Epiphany, all in a quiet and introspective mood :
introït, which uses the same theme as Durufle's "introït for Epiphany"
offertoire (at 1'12), with a kind of "flight of angels" at 2'15
elevation (at 4'29), a strange piece with a strange registration : hautbois 8, gambe 8, nasard 2 2/3, then with sub-octave coupling
communion (at 5'44), multi-sectionnal.
The postlude (a fantasy), much more extrovert, is in the next file