YORK Late Music joins in the centenary celebrations of eminent York composer and organist Francis Jackson CBE by presenting The Micklegate Singers in York Connections: Francis Jackson At 100 at the Unitarian Chapel, St Saviourgate, York, on Saturday.

Dr Jackson, who turned 100 on October 2 last year, was the organist and director of music at York Minster for 36 years, and hitting the century mark has prompted this weekend's focus on the creativity and history of York composers.

Conductor Andrew Carter's own pieces, O Praise God In His Holiness and Two For The Price Of One, will open and close the 1pm programme. In between will be Sir Edward Bairstow's Let All Mortal Flesh Keep Silence; Francis Jackson's A Hymn To God The Father; John Scott Whiteley's Laudate Deum Omnes Angeli; Philip Moore's Evening Prayers of Dietrich Bonhoeffer; James Else's Time Is; Hannah Loach's Henry Purcell and Thomas Tertius Noble's Sweet And Low.

So too will be Kerry Andrew's Lullaby For The Witching Hour; Emily Crossland's Sings Her Blessings; the world premiere of Rose Miranda Hall's A Drop Fell and a second Dr Jackson work, Ode To A Pill.

In the second York Late Music concert of the day, Juice Vocal Ensemble continue July's vocal theme with Voices Plus, an "exciting evening of new music" combining voice with electronics, found sounds, and percussion, at the chapel at 7.30pm, preceded by a pre-concert talk at 6.45pm with free entry and a complimentary glass of wine or juice.

Mark Slater's Flourishes As The Fruit will be the first of three world premieres; the other two, James Whittle's This Is How It Is, and an as-yet-untitled new David Power work, will close the programme. Further works will be Peter Moran's Five Juice Songs; Kerry Andrew's Winkblink; Amy Beth Kirsten's A Storied Death; Kerry Andrew's Lullaby For The Witching Hour, remixed by MaJiKer; Juice's arrangement of Gillian Welch's Didn’t Leave Nobody But The Baby; Paul Robinson's The Triadic Riddles Of Water And Ice; Chris Warner's Blow, Blow Thou Winter Wind; Phil Maguire's Souch/Dron/Hum and Sarah Dacey's Poetree.

Tickets for The Micklegate Singers cost £5, concessions and students £3, online at latemusic.org/ or on the door; for Juice Vocal Ensemble, £10, concessions £8, students £3.