Bassist Anthony Jackson is credited with developing the first electric 6-string bass and the low B string and Jimmy Johnson was one of the earliest users of this low B string. Stanley Clark gave the bass world the first Piccolo electric bass (a 4-string electric bass tuned an octave higher than standard bass) and bassist Bill Dickens gave us the first low F# bass string. Now the bass world has a low C# string. According to my research, bassist Jauqo III-X was the originator. Any additional info on this topic is greatly appreciated.