Begin Afresh has a duration of about 17 minutes and is cast in three movements:
- April
- October
- February
In the score program note, Weir described the piece as "a kind of diary, an almost continuous survey of musical reflections about the trees and plants I observed, in a very urban setting, over the period of a year." The title of the work comes from the final line of Philip Larkin's poem "The Trees." During the course of its completion, Weir had also taken two breaks from composing and thus named the movements after each month she started or restarted work on the piece.[1]
The work is scored for an orchestra consisting of three flutes (3rd doubling piccolo), two oboes, cor anglais, two clarinets, bass clarinet, two bassoons, contrabassoon, four horns, three trumpets, two trombones, bass trombone tuba, timpani, two percussionists, piano, and strings.[1]