diff --git a/public/src/js/importsongs.js b/public/src/js/importsongs.js
index 87d63df..f999439 100644
--- a/public/src/js/importsongs.js
+++ b/public/src/js/importsongs.js
@@ -38,25 +38,18 @@
 			"oni": 3,
 			"ura": 4
 		}
-		this.categories = {
-			"ボーカロイド曲": "ボーカロイド™曲",
-			"ボーカロイド": "ボーカロイド™曲",
-			"vocaloid music": "ボーカロイド™曲",
-			"vocaloid": "ボーカロイド™曲",
-			"バラエティー": "バラエティ",
-			"どうよう": "バラエティ",
-			"童謡・民謡": "バラエティ",
-			"children": "バラエティ",
-			"children/folk": "バラエティ",
-			"children-folk": "バラエティ",
-			"クラッシック": "クラシック",
-			"classic": "クラシック"
-		}
-		for(var i in allStrings){
-			for(var ja in allStrings[i].categories){
-				this.categories[allStrings[i].categories[ja].toLowerCase()] = ja
+
+		this.categoryAliases = {}
+
+		assets.categories.forEach(cat => {
+			this.categoryAliases[cat.title.toLowerCase()] = cat.title.toLowerCase()
+			if(cat.aliases != null){
+				cat.aliases.forEach(alias => {
+					this.categoryAliases[alias.toLowerCase()] = cat.title.toLowerCase()
+				});
 			}
-		}
+		});
+
 		this.assetSelectors = {
 			"bg-pattern-1": ".pattern-bg",
 			"bg_genre_0": "#song-select",
@@ -137,7 +130,7 @@
 						var equalsPos = line.indexOf("=")
 						if(equalsPos !== -1 && line.slice(0, equalsPos).trim() === "genrename"){
 							var value = line.slice(equalsPos + 1).trim()
-							category = this.categories[value] || data[i].trim().slice(equalsPos + 1).trim()
+							category = this.categoryAliases[value] || data[i].trim().slice(equalsPos + 1).trim()
 							break
 						}
 					}
@@ -147,12 +140,12 @@
 					var line = data[i].trim().toLowerCase()
 					if(line.startsWith("#title:")){
 						var value = line.slice(7).trim()
-						if(value in this.categories){
-							category = this.categories[value]
+						if(value in this.categoryAliases){
+							category = this.categoryAliases[value]
 						}
 					}else if(line.startsWith("#genre:")){
 						var value = line.slice(7).trim()
-						category = this.categories[value] || data[i].trim().slice(7).trim()
+						category = this.categoryAliases[value] || data[i].trim().slice(7).trim()
 						break
 					}
 				}
@@ -215,7 +208,6 @@
 			var subtitleLang = {}
 			var dir = file.webkitRelativePath.toLowerCase()
 			dir = dir.slice(0, dir.lastIndexOf("/") + 1)
-			var hasCategory = false
 			for(var diff in tja.metadata){
 				var meta = tja.metadata[diff]
 				songObj.title = meta.title || file.name.slice(0, file.name.lastIndexOf("."))
@@ -234,7 +226,7 @@
 					songObj.music = this.otherFiles[dir + meta.wave.toLowerCase()] || songObj.music
 				}
 				if(meta.genre){
-					songObj.category = this.categories[meta.genre.toLowerCase()] || meta.genre
+					songObj.category = this.categoryAliases[meta.genre.toLowerCase()] || meta.genre
 				}
 				if(meta.taikowebskin){
 					songObj.song_skin = this.getSkin(dir, meta.taikowebskin)
@@ -445,9 +437,9 @@
 				}
 			}
 			if(!hasTitle){
-				for(var cat in this.categories){
+				for(var cat in this.categoryAliases){
 					if(path[i].indexOf(cat) !== -1){
-						return this.categories[cat]
+						return this.categoryAliases[cat]
 					}
 				}
 			}