A few years ago I came across an extraordinary piece of art by a woman named Emma Hauck. She was admitted to a German psychiatric ward about a hundred years ago diagnosed with schizophrenia. Whilst a patient there she produced pages and pages of text – thousands of lines in pencil which were addressed to her husband who had ceased to visit her. She simply wrote the words “Sweetheart Come” over and over again or sometimes just the word “come”. Every page is thick with overlapping text and some are so condensed as to be illegible.

I was deeply moved by these repeated pleas and feel strongly that the desperate passion that can be seen on these pages could only really be expressed with voices. I imagine a dense layering of a simple line; each voice adding to the power of the plea…