Finally I have taken the time to review this guitar properly. Aria Pro II model YS-500, made in Japan, 1981, from the Matsumoku guitar factory. I wonder how many of these lefty YS-500 are still around today.
Actually, now that I have thought about it, the P-Rails can produce more than 4 types of sounds. I forgot to mention about the out-of-phase wiring in the video, where the single coil and P90 cancel each other out.
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