For those who don't know, Koichi Sugiyama was already fairly well established as a composer before he got started in video game music for Enix (he was in his mid 50s at the time). In addition to film scores, he wrote a number of songs for popular bands and singers, most notably the Tigers. Quite a few of his older compositions are available on YouTube now; here's what I was able to find. I've starred the ones I particularly like, YMMV.
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By the way, instrumental versions of The Flaxen-Haired Maiden and Necklace of Flowers were played as an encore at the 2002 Dragon Quest IV concert and appear as the last two tracks on the album, if anyone was wondering what that was about.