Augustine Classic Red - Medium Tension The Original Nylon Guitar String - Made in New York since 1947. Augustine Strings produced the world's first nylon guitar string, shaping guitar history and becoming the string of choice for the world's greatest concert artists. Today, Augustine provides a range of string combinations that will help every guitarist find their voice. The First Choice of Incredible Artists Augustine Strings boasts the most diverse and talented roster of endorsing artists and luthiers. These are the players who define the art of the guitar. Augustine's History is Guitar History Augustine Strings' legacy of innovation began over 75 years ago when our founder, Albert Augustine, successfully created the first nylon guitar string at the request of legendary Spanish classical guitarist, Andrés Segovia. As the inventor and producer of the gold standard of nylon guitar strings, Augustine continues to advance the sonic possibilities of our instrument today with the introduction of the crystal nylon Imperial and Regal lines and the fluorocarbon Paragon sets - all strings of the highest quality, made in the USA, and designed to offer guitarists a full range of options to bring out the best sound and playability from their instrument. Augustine Classic Augustine Classic sets most closely resemble the original nylon guitar string devised by Albert Augustine in 1947 and trusted by the greatest legends of the classical guitar. Augustine Imperial Crystal nylon represents the evolution of Albert Augustine's original nylon formula. Imperial trebles offer the tonal benefits of Crystal nylon at a lower tension for players with a lighter touch. Augustine Regal Augustine Regal sets represent the evolution of Albert Augustine's original nylon formula. When paired with classic Augustine silver bass strings of medium or high tension, sets featuring high tension Regal trebles are widely favored by concert artists. Augustine Paragon Augustine Paragon carbon treble strings are the latest in Augustine's legacy of innovation. Pair medium or high tension carbon strings with Augustine's legendary basses to achieve maximum tonal presence. Classic Series Imperial Series Regal Series Paragon Series