What about "einbeinig" playing by radio or people listening by
headphones, who are deaf on one ear etc.?
OT:
Btw. there's a nice Linux flanger or phaser that does exactly the
panning you can hear on Jimi Hendrix' "The Cry of Love".
I suspect they produced it using 2 recorders. Analog and digital effects
usually do sound a little bit different.