SSAATTBB chorus unaccompanied - Digital Download SKU: OX.9780193531635 Composed by Bob Chilcott. Sheet music. Octavo. 12 pages. Oxford University Press Digital #9780193531635. Published by Oxford University Press Digital (OX.9780193531635). ISBN 9780193531635.For SSAATTBB unaccompanied. When spring comes walking is a warm and optimistic setting of an evocative poem by Charles Bennett that explores themes of rebirth, nature, and celebration. Chilcott embraces the return of spring with gentle sustained melodies, rich harmonies, and a quote from the traditional carol 'O come, O come, Emmanuel'.