Product Description Most famously used by Sir Paul McCartney on the Beatles’ Abbey Road, Tru Bass strings have been utilised by jazz, fusion, dub, and reggae players. The distinctive black wrap and yellow silk ends of these strings have been spotted on basses belonging to icons such as Bruce Foxton, Graham Maby, and Herbie Flowers. From the Manufacturer Specifically designed and patented in 1962 to emulate the mellow sound of an upright bass using flatwound black nylon ribbon, our Tru Bass strings have been embraced by players of all styles. Originally conceived by James How to be fitted to the Burns Black Bison bass, Tru Bass strings may be the nearest you will ever get to a double bass tone from an electric bass.