(Signature Licks Guitar). Learn the exact styles and techniques John Petrucci used on 12 Dream Theater songs with step-by-step breakdowns by Troy Stetina. Songs: Behind the Veil * Breaking All Illusions * The Count of Tuscany * Endless Sacrifice * Erotomania * Fatal Tragedy * The Glass Prison * Home * In the Presence of Enemies Part 1 * On the Backs of Angels * Pull Me Under * Under a Glass Moon. Includes online access to full band audio demos at normal and slow speeds for download or streaming.