Well, the thing is that I wonder if Touhou, the game serie, is viable as Source for arrangments, Remixes, etc... Mostly the Artists for these Songs are Bands and productions like ALiCE'S EMOTiON, IOSYS, Halozy, Demetori or Silver Forest (Of course they are other well-known Artists for this Topic but I had them in my Mind) I often read that the Source is the Game, the Movie and/or the Serie from where the Song comes.
Let's take this Song as example: https://osu.ppy.sh/s/82259 (The original is the theme of Cirno, which is very obvious. But setting Touhou as Source is completly wrong and would mislead. And so that, the Mapper set Touhou into the Tags and put the better way of Source in the place)
Then let's look at this Map: https://osu.ppy.sh/s/59049 (Honestly, this Song has very little similarities to the Original and sounds more like a own interpretation of the original Theme)
Another thing I wonder: https://osu.ppy.sh/s/24304 If possible, someone should tell me if this is a original Song or just a "Fan-Made" aka Mash-Up made by someone. Because here there isn't Touhou as Source but BMS, and I guess this is the Game from where the Song Second Heaven actually comes.
I do not know if ZUN is the only composer to all Themes of Touhou. However, as long the Remix/Arrangment does not appear somewhere in any Touhou Game, it has nothing to do in the Source and should be moved to the Tags.
Let's take this Song as example: https://osu.ppy.sh/s/82259 (The original is the theme of Cirno, which is very obvious. But setting Touhou as Source is completly wrong and would mislead. And so that, the Mapper set Touhou into the Tags and put the better way of Source in the place)
Then let's look at this Map: https://osu.ppy.sh/s/59049 (Honestly, this Song has very little similarities to the Original and sounds more like a own interpretation of the original Theme)
Another thing I wonder: https://osu.ppy.sh/s/24304 If possible, someone should tell me if this is a original Song or just a "Fan-Made" aka Mash-Up made by someone. Because here there isn't Touhou as Source but BMS, and I guess this is the Game from where the Song Second Heaven actually comes.
I do not know if ZUN is the only composer to all Themes of Touhou. However, as long the Remix/Arrangment does not appear somewhere in any Touhou Game, it has nothing to do in the Source and should be moved to the Tags.