diff --git a/models/Article.js b/models/Article.js
deleted file mode 100644
index f08a008..0000000
--- a/models/Article.js
+++ /dev/null
@@ -1,54 +0,0 @@
-const mongoose = require('mongoose');
-const uniqueValidator = require('mongoose-unique-validator');
-const slug = require('slug');
-const User = mongoose.model('User');
-
-const ArticleSchema = new mongoose.Schema(
-  {
-    slug: { type: String, lowercase: true, unique: true },
-    title: String,
-    description: String,
-    body: String,
-    favoritesCount: { type: Number, default: 0 },
-    comments: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Comment' }],
-    tagList: [{ type: String }],
-    author: { type: mongoose.Schema.Types.ObjectId, ref: 'User' },
-  },
-  { timestamps: true },
-);
-
-ArticleSchema.plugin(uniqueValidator, { message: 'is already taken' });
-
-ArticleSchema.pre('validate', function (next) {
-  if (!this.slug) {
-    this.slugify();
-  }
-
-  next();
-});
-
-ArticleSchema.methods.slugify = function () {
-  this.slug = slug(this.title) + '-' + ((Math.random() * Math.pow(36, 6)) | 0).toString(36);
-};
-
-ArticleSchema.methods.updateFavoriteCount = async function () {
-  this.favoritesCount = await User.count({ favorites: { $in: [this._id] } });
-  return await this.save();
-};
-
-ArticleSchema.methods.toJSONFor = function (user) {
-  return {
-    slug: this.slug,
-    title: this.title,
-    description: this.description,
-    body: this.body,
-    createdAt: this.createdAt,
-    updatedAt: this.updatedAt,
-    tagList: this.tagList,
-    favorited: user ? user.isFavorite(this._id) : false,
-    favoritesCount: this.favoritesCount,
-    author: this.author.toProfileJSONFor(user),
-  };
-};
-
-mongoose.model('Article', ArticleSchema);
diff --git a/models/Comment.js b/models/Comment.js
index 86a2fd6..6fff204 100644
--- a/models/Comment.js
+++ b/models/Comment.js
@@ -4,7 +4,7 @@ const CommentSchema = new mongoose.Schema(
   {
     body: String,
     author: { type: mongoose.Schema.Types.ObjectId, ref: 'User' },
-    article: { type: mongoose.Schema.Types.ObjectId, ref: 'Article' },
+    track: { type: mongoose.Schema.Types.ObjectId, ref: 'Track' },
   },
   { timestamps: true },
 );
diff --git a/models/User.js b/models/User.js
index ff832ad..2b77e6d 100644
--- a/models/User.js
+++ b/models/User.js
@@ -24,7 +24,7 @@ const UserSchema = new mongoose.Schema(
     },
     bio: String,
     image: String,
-    favorites: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Article' }],
+    favorites: [{ type: mongoose.Schema.Types.ObjectId, ref: 'Track' }],
     following: [{ type: mongoose.Schema.Types.ObjectId, ref: 'User' }],
     areTracksVisibleForAll: Boolean,
     hash: String,
@@ -131,4 +131,4 @@ UserSchema.methods.isFollowing = function (id) {
 
 mongoose.model('User', UserSchema);
 
-module.exports = mongoose.model('User')
+module.exports = mongoose.model('User');