added a bunch of stuff

sql/insert_song.sql

@@ -1,4 +1 @@
--- With Spotify Id
-INSERT INTO
-    songs (id, name, length, album, artist, spotify_id)
-VALUES  (?, ?, ?, ?, ?, ?);
+INSERT INTO songs (id, name, length, album_id, artist_id, musicBrainzId) VALUES (?, ?, ?, ?, ?, ?);