File consists of the score co-created by Maestro Jonathan Girard and Deborah Carruthers to be used in the performance of slippages by the UBC Symphony Orchestra as well as the transparent overlay they used to map out responsibilities within the orchestra.

For their performance of slippages, Carruthers and Girard approached the task of interpreting graphic scores by mapping the seating arrangement onto the images themselves, creating a sort of geography of the orchestra. By creating a transparent overlay of the orchestral seating chart, they could go page by page and figure out which instruments would take responsibility for which parts of the images. Once areas of the image were assigned to orchestral sections, the musicians looked at the depth and saturation of the colours and translated them into musical intensity, texture, and so on. Next, Carruthers and Girard mapped out the relationship between the layered pages of the score, interpreting how glaciers reveal themselves and their histories as they melt due to climate change. In this composer's score, those parts are assigned based on the seating chart.