thanks so much for sharing these.. i have never heard these songs before, and didn’t even know johnny guitar had vocal songs!
& happily, i can help you out with some info!
here is the tracklist:
A1: รำวงปีใหม่ (ram wong pi mai)
A2: รักล้นฝั่งใจ (rak lon fang chai)
A3: พายเรือหาฝั่ง (phai ruea ha fang)
A4: รำวงร่วมใจ (ram wong ruam chai)
i think the store you describe, with the stacks of unplayed records, is cathay records, where many famous thai singers actually recorded!
as for the couple & their hand signs, they lead single here, “ram wong pi mai” is a dance tune for the thai new year. the “ramwong” in the title is a dance craze in thailand that began in the 40′s, and is characterized by the hand movements you see on the cover!
you can find more info on the shadow music movement at this post at my site: http://monrakplengthai.blogspot.com/2010/11/shadow-prayuk.html