Youtube user wouter van Veldhoven has posted a fantastic video of a tape delay setup using a modular setup and four reel-to-reel tape machines.
Techniques shown here include:
Looping, Delay, Reverse Delay and Saturation.
Way to go Wouter, you rock.
Its easy to forget that only a matter of decades ago, this was a technique used extensively in the creation of electronic music.
Worth checking out Wouter's channel for some more electronic madness.
16 track multitimbral synthesiser with fully sequenceable parameter locks, video synthesis and the introduction of step components.