University of St Andrews and Kemp Strings inventor Dr Jonathan Kemp has just developed a new concept in bass guitar strings design which reduces inharomicity, improving tone when playing high up the neck. Inharmonicity is a term which refers to the way that the resonances of a vibrating string go increasingly sharp of true harmonics because of the bending stiffness of the material from which they are made. The new research is published in the peer reviewed, open access paper “On inharmonicity in bass guitar strings with application to tapered and lumped constructions” in the SN Applied Sciences journal with digital object identifier doi.org/10.1007/s42452-020-2391-2
You can now buy Kemp Strings Lumped 45s, the world’s first lumped bass guitar strings.
Check out Gus Stirrat’s demo of lumped strings from Kemp String below. Gus is a mainstay of the Scottish jazz scene playing in bands Fat Suit (winner of Best Album and Best Band in the 2017 Scottish Jazz Awards), Animal Society and the Gus Stirrat Band amongst others.
Here’s a video discussing the research and presenting the raw sound examples from the research paper:
The University of St Andrews have also made a press release on Dr. Jonathan Kemp’s lumped bass guitar strings.