Albert Augustine invented the nylon classical guitar string and the company named after him continues to produce high-quality strings, as it has since 1947, when famed guitarist Andres Segovia began working with Augustine to develop the new kind of guitar string. Today, Albert Augustine Ltd. is a major force in the classical guitar field. Strings and Beyond carries a variety of Augustine guitar strings: the high-tension Blue Sliver Bass
and Clear Treble classical strings; medium-tension Red Copper Bass and Nylon Treble classical strings; Red Imperial and Blue Imperial strings made of a new and unique polymer with a medium gauge that's lighter than the Regal line for easier action; Red Regal and Blue Regal strings in a heavier gauge; the Silver Black Label strings in a medium/hard tension; and Gold Classical strings
. In addition to these nylon strings, Augustine has added Phosphor Bronze acoustic guitar strings in three different gauges to its line.