Tonalities Section-by-Section for Requiem for the Working Man

......| G major/minor | D minor ->C# major | C major ->D major | C minor | D# minor | E minor | C minor | G minor - Bb minor |
......| F# phrygian - A minor | A minor | D minor | Gb major | Eb minor | Bb minor - C major | Ab major - Bb major - C major |
More detail
01 - Prelude (1:35) (no choral sounds) G major - D minor - C# minor - G minor
02 - Introitus (5:21) vii°7->D harmonic minor [V - i - V - iv -vii°- III] [pause] shifts to C# major at end.
03 - Kyrie | Dies Irae (5:37) (sections merged)
......a Kyrie (2:05) C-major [C7 - vii9] --- shifts to D major at end.
......b Dies Irae (3:32) C-minor [i - i9 - end i7 minus 3rd]
04 - Tuba Mirum (2:39) D# pure minor - shifts to D# harmonic minor mid-way [ i - V7]
05 - Rex Tremendae (4:01) E pure minor, embellished by passing tones throughout.
06 - Recordare (2:41) C pure minor - shifts to melodic minor, changes to D harmonic minor midway.
07 - Confutatis | Lacrimosa (11:05) (sections merged)
......a Confutatis (3:58) G pure minor - shift to harmonic minor - sudden shift to Bb harmonic minor [vi - i - iv - i9]
......b Lacrimosa 97:03) F# phrygian minor - A pure minor [i - i9]
08 - Domine Jesu (1:42) A harmonic minor [i - diatonic cluster - i - diatonic cluster]
09 - Hostias (2:55) D harmonic minor [i - V7 - i7 - V7 - iv - ii°7 - i]
10 - Sanctus | Benedictus (5:44) (sections merged)
......a Sanctus (2:37) Gb major [I7 - ends i w/unresolved lowered 5th]
......b Benedictus (3:07) Eb pure minor - shifts to harmonic minor - sudden shift to E pure minor [i - VII7 - i]
11 - Agnus Dei (6:23) Bb pure minor [i - i7 ] - sudden shift to C major [I]
12 - Lux Aeterna (6:02) Ab major - shifts to Bb major - sudden shift to C major - shift to C minor [i - diatonic cluster ] - C major.