Over the past few years, Marshall-Luck has been active as an editor and writer and has been responsible for editing from the composers' autographs several works that he has included in his recital programmes and recordings; some of these, such as the Violin Sonata in A major by Henry Walford Davies, the Five Pieces for Violin and Piano by Gustav Holst, and the Sonata for Violin and Piano in E-flat major by Ivor Gurney, have been published by EM Publishing. He has also worked with G. Henle Verlag of Munich on a new scholarly-critical edition of Elgar's popular salon piece "Salut d'Amour"; his article exploring the notation of the work's sources and its implication upon the performance of the piece was circulated by the publishing house on its website in 2013.