Since the studios of the time only offered 24-track analog tape, it was necessary for the three to overdub themselves many times and "bounce" these down to successive sub-mixes.
Karena studio pada waktu itu hanya menawarkan rekaman analog 24 jalur, perlu tiga kali overdub berkali-kali dan "memantulkan" overdub itu ke dalam beberapa sub-mixes.