Unexpected nice distortion on Pleiades 2 K117 microphone preamplifier by chance

At your risk! While fine tuning the second stage... The coupling capacitor from 1st amplifying stage was disconnected to 2nd stage and music from the Sony Cd walkman was connected to potentiometer feeding second stage on the small made in Taiwan breadboar At a point Vb 9V batterysupply was disconnected from output transformer and was connected by mistake to one rail below feeding only the onlder version drain resisator of 22Kohms. surprisingly music could be heared on headphones connected to output transformer with a very interesting distortion on Barbara Streisand vocals. And no matter how loud distortion did not become ugly. By observing carefully the schematic the output transformer is still connected to the drain of output stage but its other side is connected to the upper side of the 1rst stage drain resistor. So effectively this other side of the transformer is connected to ground through the whole 1st JFEt stage. It worked only with high values of 2nd stage source resistor, say 3.8Kohms.