Since 1964, Guitar Center has paired musicians with guitars, keyboards, drums, Pro Audio gear, and necessary accessories, including DJ and recording equipment to capture newly made melodies. An iPad music-stand adaptor ($39.99) connects an iPad to a music stand, allowing musicians to access online programs and music apps on-stage, or to publicly dedicate a song to their online Scrabble partner. A clip-on tuner ($29.99) keeps notes pitch-perfect, and Guitar Center’s array of sheet music produces a wider variety of sounds than singing from a thesaurus, with options that include the C-surfing The Real Blues Book ($31.49). Stitch tighter harmonies by threading notes onto Slinky guitar strings ($3.79), or use the value of today's Groupon toward a larger purchase, such as the Epiphone Les Paul Special II guitar ($169–$179.99). Guitar Center rounds out its collection of gear with Pro Audio and DJ equipment, keyboards, and drums, allowing every band member or solo cymbal player to stock up on their chosen form of expression.