Ruben Johannes Sturm creates 27 improvisations on Christmas carols, songs, and hymns on the 194-rank organ built in 1994 by Georg Jann at the Frauenkirche, Cathedral of Our Lady, in Munich. 

Ruben Johannes Sturm: Improvisations on Christmas Carols
Tochter Zion
Andorinha gloriosa
Es kommt ein Schiff geladen
Maria heeft het boek
Maria durch ein Dornwald ging
The first nowell
Ho ro'em b-Ofartho
What Child is this
Les anges dans nos campagnes
Hark! The Herald Angels sing
Carol of the Bells
Ding dong! Merrily on high
Gelobet seist du, Jesu Christ
Jingle Bells
Lulajze Jezuniu
Tu scendi dalle stelle
Stille Nacht
Mennyböl az angyal
El petit vailet
Auf dem Berge, da wehet der Wind
Shengye jing
O Holy Night
Marche des rois
Adeste fideles / O Sanctissima / Joy to the World
The little Drummer Boy
Il est ne, le divin enfant
Feliz Navidad

1994 Georg Jann Organ, Munich Cathedral (Frauenkirche), West Gallery
I. Manual - Rückpositiv (C-a"')
Quintade 16'
Praestant 8‘
Voce umana 8'
Rohrflöte 8'
Quintade 8'
Octave 4'
Hohiflöte 4'
Sesquialtera 2-2/3’
Superoctave 2'
Flautino 2'
Quinta 1-1/3’
Sifflöte 1’
Scharff 4-6f. 1'
Cymbel 3f. 1/3’
Trompette 8'
Cromorne 8'
Clairon 4'
Tremulant

ll. Manual - Hauptwerk (C-a"‘)
Praestant 16'
Gedeckt 16'
Octave 1-2 rks. 8’
Gambe 8'
Flûte harmonique 8'
Quinte 5-1/3’
Octave 1-2 rks, 4‘
Flauto 4'
Terz 3-1/5'
Quinta 2-2/3'
Octave 1-2 rks. 2'
Mixtur major 6-8 rks. 2‘
Mixtur minor 4 rks.1’
Cornet 5 rks. 8'
Trompete 16'
Trompete 8'
Vox humana 8'

Ill. Manual - Positiv (C-a"')
Gemshorn 16'
Praestant 8'
Bourdon 8'
Octave 4'
Blockflöte 4'
Nazard 2-2/3'
Doublette 2'
Tierce 1-3/5’
Larigot 1 1/3’
Mixtur 5 rks. 1-1/3’
Cymbel 3 rks. 2/3'
Dulcian 16'
Schalmey 8'
Clarinette 8'
Tremulant
Glockenspiel

IV. Manual - Schwellwerk (C-a"')
Gambe 16'
Bourdon 16'
Diapason 8'
Flûte traversiére 8'
Bourdon 8'
Aeoline 8'
Salicional 8'
Unda maris 8'
Octave 4'
Flûte octaviante 4’
Nachthorn 4‘
Viola 4'
Quinte 2-2/3'
Octavin 2'
Tierce 13/s'
Piccolo 1’
Progressio harmonica 2-5 rks. 2-2/3’
Plein jeu 4 rks. 2'
Basson 16'
(IV. Manual - Forts.)
Trompette harmon. 8'
Hautbois 8’
Horn 8’
Clairon harmon. 4'
Tremulant
Carillon

Chamad Werk (C-a"') (an jedes Werk koppelbar)
Chamade 16'
Chamade 8'
Tuba 8‘
Trompeta quinta 5-1/3'
Clairon 4'

Pedal (C-f')
Principalbaß 32'
Violonbaß 32'
Principalbaß 16'
Violon 16'
Subbaß 16'
Quinte 10-2/3'
Octave 8'
Baßflöte 8’
Cello 8'
Octave 4'
Offenflöte 4'
Bauernflöte 2‘
Hintersatz 5 rks. 2-2/3‘
Baßmixtur 6 rks. 2'
Bombarde 32‘
Posaune 16’
Fagott 16'
Trompete 8'
Feldtrompete 4'

Choir Organ
I. Manual - Hauptwerk (C-a'")
Principal 16'
Principal 8'
Bourdon 8'
Octave 4'
Quinte 2-2/3‘
Superoctave 2’
Cornett 5 rks. 8'
Mixtur 6 rks. 1-1/3'
Trompete 8’
Clairon 4'

ll. Manual - Oberwerk (C-a'")
Principal 8’
Rohrflöte 8'
Octave 4’
Blockflöte 4'
Nasat 2-2/3’
Flautino 2'
Terz 1-3/5'
Scharff 4 rks. 1'
Dulcian 16’
Oboe 8'
Tremulant

Ill. Manual - Brustwerk (C-a"')
Holzgedackt 8'
Salicional 8'
Holzflöte 4'
Principal 2'
Quinte 1-1/3’
Cymbel 3 rks. 2/3'
Cromorne 8'
Tremulant

Pedal (C-f‘)
Principal 16'
Subbaß 16'
Octavbaß 8'
Gedecktbaß 8'
Nachthorn 4'
Hintersatz 4 rks. 2 2/3'
Bombarde 16'
Posaune 8’
Zinke 4'
Cymbelstern

Koppeln:
Ill/I  II/I  III/II
I/P ll/P III/P