true, I'm happy some games had guitar by default in the games. I think Ys series was the first to do it, but I'm unsure:
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the song in the following vid didn't had guitar but it was still cool
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the song at 2:44 and the next ones is an example. They are from 1991 tho but for some reasons I prefer these version to the ones in Ys III remake (Oath In Felgana)
That made me wish the Turbografx-16 and CD add-on was more popular over North America. It had Genesis/Mega-Drive style graphics, but amazing sound since it was ran from game CD-ROMs. I think the console came out in 1987 or 1988