We used a Korg MS20 analog synthesizer and an electric guitar (passing
through a couple of effect units), each plugged into one of the
two front input jacks of the first Akai.
The tape is mounted on the first recorder's left reel holder, led
along the heads, and then passes on to the second recorder which
is placed at a certain distance, led along the second recorder's
heads, and wound on this machine's right reel holder.
The second recorder's left and right line output are connected to
the first recorder's left and right line input.
Now both machines are put in 'pause'-mode, and the first one is
switched to 'record', the second one to 'play'. It then was a matter
of simultaneously releasing the two 'pause' handles in order to
get both recorders running at the same moment, and begin playing
The sounds produced are recorded on the first machine, then played
back by the second one, with a delay determined by the distance
between Akai 1 and 2, and recorded again by the first one together
with the ongoing instrument playing of the moment. All of this then
is played back again by Akai 2, fed back to machine number one,
It was possible to monitor what was going on and synchronize the
actual playing with the fed back signal, through the first machine's
line output, or it's headphone output. Each player was able to determine
the relative level of the feedback to that of his actual playing
by fiddling around with the input dials of his channel.
This went on and on until, well, yes, of course until all of the
tape had been wound onto recorder number two, containing the registration
of it all.