Add new test for whole song
Add new test for whole song

exercism/xecmascript,tejasbubane/xecmascript,MattH-be/ecmascript,tejasbubane/xecmascript,MattH-be/ecmascript,arthurchipdean/xecmascript,exercism/xecmascript,arthurchipdean/xecmascript