From Wikipedia


The plectrum guitar is a close four stringed relative of the tenor guitar with a scale length of 26-27 inches and tunings usually based on the plectrum banjo - CGBD or DGBD. Plectrum guitars are also very suitable for guitar tuning - DGBE - because of their longer scale length but are much less suitable for CGDA tuning because of the high A string. Plectrum guitars were not made in as large numbers as tenor guitars and are now more rare.

Plectrum guitars played a similar role for plectrum banjo players in this period as the tenor guitar, but was much less common. One of the best known plectrum guitarists from the Jazz Age was Eddie Condon, who started out on banjo in the 1920s and then switched to a Gibson L7 plectrum guitar in the 1930s and stayed with it all his musical life up to the 1960s.

[edit] Use and performers