Original sentence: Charlie Christian, one of the first well-known electric guitarists, helped to popularize Gibson's electric guitars with his use of the ES-150 and ES-200.Gibson also owns and makes guitars under such brands as Epiphone, Kramer, Valley Arts, Tobias, Steinberger, and Kalamazoo.In addition to guitars, the company makes pianos through its Baldwin unit, Slingerland drums, as well as many accessory items.The Gibson Guitar Corporation, of Nashville, Tennessee, USA, is a manufacturer of acoustic and electric guitars.The company's most popular guitar, the Les Paul Standard, is a solid-body electric guitar.Today, one model of Gibson guitars ("Robot Guitar") can tune itself in about 10 seconds using robotic technology developed by Gibson and Tronical Gmbh
Edited sentence: Charlie Christian, the first well-known electric guitarist, helped to popularize Gibson's electric guitars with his use of the ES-150 and ES-200.Gibson also makes guitars under such brands as Epiphone, Kramer, Valley Arts, Tobias, Steinberger, and Kalamazoo In addition to guitars, the company makes pianos through its Baldwin unit, Slingerland drums, as well as many accessory items.The Gibson Guitar Corporation, of Nashville, Tennessee, USA, is one of the world's best-known manufacturers of acoustic and electric guitars.The company's most popular guitar, the Les Paul Standard, a solid-body electric, sells for about $US 2,300.Today, some models of Gibson guitars can tune themselves in about 10 seconds using robotic technology developed by Gibson and Tronical Gmbh