(Essential Elements Guitar). The songs in the Hal Leonard 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. All of the songs are printed on two facing pages; no page turns are required. This series is perfect for classroom guitar ensembles or other group guitar settings. This edition features 15 rock hits: All the Small Things * Beautiful Day * Best of You * Clocks * Hey, Soul Sister * Iris * Plush * Say It Ain't So * Smells like Teen Spirit * Smooth * This Love * 21 Guns * Under the Bridge * Use Somebody * Wonderwall.