While the four CDs have a documentary quality to them, Diepenmaat invited artists to compose new work out of his collected field recordings and made those new pieces available as a download, essentially producing a fifth CD to complement the four physical ones.
"Off Track is another unique release for Esc.rec., a label that continues to innovate through imagination. As a sonic document, a manipulation of the sonic document, and a manipulation of the manipulation, it offers layers of interpretation that mimic the activity of the human mind. The presentation ~ four discs and a digital file ~ is a generous souvenir as well as a celebration."
"Het gaat hier niet om zomaar een bedacht project of een interessant experiment, maar om verbazingwekkend mooie muziek."
"By re-arranging and filtering the source material and adding electronics, the new tracks become an alternate reality of electro-acoustic sounds. Changing the original recordings in this way teaches us never to take any environmental sound for granted."