By implementing Line 6's Variax HD technology, the Line 6 Variax JTV-59 electric guitar is able to contain multiple instruments and tunings within one body. Offering tweakable presets using Variax Workbench HD software, modeling for electric and acoustic guitars, and instant access to alternate tunings, the JTV-59 is fantastic for guitarists who get frustrated with switching out instruments or interrupting the flow of recording and jamming.