Violectra is the name of a range of electric violins, violas and cellos designed, developed and hand made by David Bruce Johnson, a Canadian violin maker settled in Birmingham, England.
These instruments are played by Nigel Kennedy, Richard Tognetti, Stephen Nachmanovitch, Leila Josefowicz and many more professional players worldwide.
It is tuned an octave below normal violin, i.e. between viola and cello.
Jean-Luc Ponty, Michał Urbaniak and Elek Bacsik were among the first jazz violinists to play it.
Fiddler Vassar Clements brought the instrument into the progressive bluegrass scene, and Urban Blitz into a rock music context.