Bahian guitar

[1] The Bahian guitar evolved from the so-called "electric log", developed in the early 1940s by Adolfo "Dodô" Nascimento and Osmar Álvares Macêdo, in Salvador, Brazil.

[2] It was equipped with four single strings mounted across a lengthy slab of wood and the neck of a cavaco (hence the names).

This instrument apparently evolved in isolation from the efforts of contemporary American developers like Les Paul or Leo Fender, and given that solid-body electric mandolins did not appear in the United States until the 1950s, the Bahian guitar can be regarded almost as the eldest known electric mandolin, or a descend from its own distinct line of prehistoric solid body guitars.

Until its invention, North American developers had not applied the principle of solid or almost-solid bodies to mandolins to the same extent as they had to guitars.

[citation needed] In the late 1960s in Brazil during the Tropicalia movement, there was a lot of disapproval from musicians and critics towards the addition of elements from British/American pop and rock into Brazilian music – including the use of electric guitars; however, this pushback was later reneged upon.