(Essential Elements Guitar). The songs in Hal Leonard's Essential Elements Guitar Ensemble Series are playable by multiple guitars. Each arrangement features the melody (lead), a harmony part, and a bass line. Chord symbols are also provided if you wish to add a rhythm part. For groups with more than three or four guitars, the parts may be doubled. Play all of the parts together, or record some of the parts and play the remaining part along with your recording. All of the songs are printed on two facing pages; page turns are required. This series is perfect for classroom guitar ensembles or other group guitar settings. This folio features 14 favorites: Blurred Lines * Get Lucky * Happy * Ho Hey * Home * Let Her Go * Let It Go * Locked Out of Heaven * Radioactive * Roar * Royals * Say Something * Skyfall * A Thousand Years.