It was transferred to 48-track analog tape in autumn 1987, at which time vocals were added. The 48-track was then mixed down to a stereo master in winter 1987–1988.
The recording was switched to 48-track analog tape in the fall of 1987, and vocals were added during this time. Later, the 48-track was reduced to a stereo master by the end of 1987 or early 1988.