SATB (with divisions) unaccompanied Am Abend is a setting of 'Grodek', which is thought to be the last work of the Austrian poet Georg Trakl. Written in 1913, the year before Trakl committed suicide at the age of 27, the poem is set in the town of Grodek on the Eastern Front, where he had served as a medical officer. Jackson's setting is agonizingly moving, opening with an eerie alto melody before the rest of the choir enter with haunting harmonies and cluster chords, reflecting the darkness of the text. Grace notes and glissandi add an Eastern flavour and evoke the 'wild lament' and 'dark...

for SSAATTBB Ave gloriosa Mater salvatoris is a challenging and yet delicate anthem, with subtle key-signatures changes, vocal divisions in up to eight parts, and alternating homophonic and polyphonic passages. The text includes excerpts from the synonymous medieval hymn and Wordsworth's poem The Virgin, making the piece suitable for a variety of sacred celebrations and particularly those of the Blessed Virgin Mary.

for SATB and organ Written for the 20th Anniversary of Norwich Cathedral Girls' Choir, this setting of the well-known All Saints Day text juxtaposes flowing melodic lines in the sopranos with rich homophonic passages, each bringing the text to the fore. The organ plays a prominent role, providing gentle undulating accompaniment, as well as fanfare-like exclamations.

for SATB (with divisions) unaccompanied This serene communion motet sets the last two verses of the Pangue Lingua and oscillates between 3/4 and 4/4 time signatures. The melodic lines are expressive and at times melismatic and the divisi in all parts creates a rich texture.

for SATB unaccompanied In this unaccompanied setting of a text by contemporary poet Thomas A. Clark, Jackson skilfully evokes the magical atmosphere of the onset of nightfall. This is a striking and complex piece, with highly imaginative word setting.

for SATB with divisions, unaccompanied This setting of texts from Cymbeline and The Merchant of Venice, and Sonnet 98, is characterised by inventive textures and vibrant word-setting. The harmonic language is for the most part diatonic, but never plain, and there are some pungent dissonances, as the contrasts between and within the texts are laid bare in music of evocative power.

for SATB unaccompanied (with divisions) Three prayers, with a vision of light sets early Christian texts by St Augustine of Hippo, Baldwin of Forde, and St Mary Magdalene de Pazzi alongside words by Estonian poet Doris Kareva. Each movement offers a change of mood, from the reflective 'Conversi ad Dominum' to the more urgent and pleading 'Aufer a me, Domine' and serene 'Veni, Sancte Spiritus', with 'He who lives in light' offering an expressive and contrasting central movement.

for SATB unaccompanied This anthem for unaccompanied choir juxtaposes the words of the Antiphon for the Washing of Feet on Maundy Thursday with 'The red rose whispers of passion' by the poet John Boyle O'Reilly. Jackson combines lyrical polyphonic phrases for upper and lower voices with atmospheric passages for full choir, frequently accompanied by repeated half-whispered text in free time.