Christus factus est, WAB 10

Bruckner composed the motet in 1873, and it was first performed on 8 December 1873 in the Wiener Hofmusikkapelle for the celebration of Mariä Empfängnis (feast of the Immaculate Conception).

[1][3] According to R. Luna, this "would mean that he conceived the work ideally for eight-part choir with brief interventions of the trombones and that he had written the strings colla parte[4] to prevent any intonation problems.

[5] The work was published first by Ludwig Berberich in Vienna in 1934 without string instruments (the violins being replaced by the alto voice during bars 1-14).

[6] The 61-bar work in D minor is scored for eight-part mixed choir, three trombones, two violins,[3] and viola, cello and double bass.

[2]The fourth section (bars 31 61) begins in pianissimo and in successive entries of the eight voices – from the lowest till the highest vocal parts – establishing a "pyramid" of sound based on an A♭ pedal tone, which leads the a further climax in C major.