The in total 94-bar work in F minor is scored for SSATB choir, 3 trombones and figured bass (organ, cello and double bass).
It is in five parts, separated by cadences on the responses Quando cœli and Dum veneris
Libera me, Domine: homophonic, 18 bars, ending pianissimo on per ignem with a bare fifth
Tremens fac: five-voice fugato, 23 bars, ending in homophonic fortissimo on Quando cœli
Dies illa: 25 bars, in canon, with a variety of imitative textures, ending in homophonic fortissimo on Dum veneris
Requiem aeternam: 10 bars, a chorale sustained by the trombones
First part da capo
Part 3 contains dissonances similar to those found in the Agnus Dei of the later Mass in E minor.[3] Apart from its significance as a precursor to Bruckner's mature style, the F minor Libera me is effective on its own terms. The music is heartfelt and profound, and is a gracious, if rather austere, rendering of the text.[4]
Selected discography
The first recording of the Libera me occurred in 1979:
Hans Zanotelli, Hans Zanotelli, Philharmonia vocal-ensemble Stuttgart, Anton Bruckner: Latin motets – CD: Calig CAL 50477
A selection among the about 20 recordings:
Anton Bruckner – Music of the St. Florian Period (II), Jürgen Jürgens conducting the Monteverdi-Chor and the Camerata Academica Hamburg, Werner Kaufmann (Organ), 1985; this historical, previously not issued performance has recently been transferred to CD: BSVD-0111, 2012
Matthew Best, Corydon Singers, English Chamber Orchestra Wind Ensemble, Mass in E minor; Libera me; Zwei Aequale – CD: Hyperion CDA66177, 1985
Petr Fiala, Czech Philharmonic Choir, Anton Bruckner: Motets – CD: MDG 322 1422-2, 2006
Max Auer, Anton Bruckner als Kirchenmusiker, G. Bosse, Regensburg, 1927
Keith William Kinder, The Wind and Wind-Chorus Music of Anton Bruckner, Greenwood Press, Westport, Connecticut, 2000
Anton Bruckner – Sämtliche Werke, Band XXI: Kleine Kirchenmusikwerke, Musikwissenschaftlicher Verlag der Internationalen Bruckner-Gesellschaft, Hans Bauernfeind and Leopold Nowak (Editor), Vienna, 1984/2001
Cornelis van Zwol, Anton Bruckner 1824–1896 – Leven en werken, uitg. Thoth, Bussum, Netherlands, 2012. ISBN978-90-6868-590-9