Use native esm

models/album.js

@@ -1,35 +0,0 @@
-export default function (sequelize, DataTypes) {
-  const Album = sequelize.define('album', {
-    id: { type: DataTypes.INTEGER, primaryKey: true, autoIncrement: true },
-    externalId: { type: DataTypes.STRING(50), index: true }, // eslint-disable-line new-cap
-    service: DataTypes.ENUM( // eslint-disable-line new-cap
-      'deezer',
-      'google',
-      'itunes',
-      'spotify',
-      'xbox',
-      'youtube'
-    ),
-    name: DataTypes.TEXT,
-    artistId: DataTypes.INTEGER,
-  }, {
-    paranoid: true,
-    indexes: [
-      {
-        fields: ['externalId', 'service'],
-      },
-    ],
-    getterMethods: {
-      type() {
-        return 'album';
-      },
-    },
-  });
-
-  Album.associate = function associate(models) {
-    Album.hasMany(models.match);
-    Album.belongsTo(models.artist);
-  };
-
-  return Album;
-}