MB + Last.fm + Discogs = Import!

db/migrate/20110926031740_prepare_to_mixed_import.rb

@@ -0,0 +1,11 @@
+class PrepareToMixedImport < ActiveRecord::Migration
+  def up
+    add_column :track_artists, :name, :string
+    add_column :albums, :master_id, :integer
+  end
+
+  def down
+    remove_column :track_artists, :name
+    remove_column :albums, :master_id
+  end
+end