LOL. i remember reading somewhere he wrote it in Japanese first? but decided to switch it over to English due to a friend's opinion. i don't remember where i read that from though, haha. but i think Jin's written most, if not all, of his solos.
but my favorite Jin solo will always be "Murasaki"
yeah, it's quite unfortunate -QoP- sold the way it did, but i'm personally glad the material is better than their previous effort(s). -QoP- really embodies the group's growth as musicians and as people over the past year, in my opinion.