
1) Guitar family instrument
Found on
https://www.crosswordclues.com/clue/bajo-sexto

Bajo sexto (Spanish: `sixth bass`) is a Mexican string instrument with 12 strings in 6 double courses, while bajo quinto has 10 strings in 5 double courses. Although of southern Mexican origin, these instruments are used primarily in norteño music of northern Mexico and across the border in the music of south Texas known as `Tex-Mex`, `conju...
Found on
http://en.wikipedia.org/wiki/Bajo_sexto

(from the article `Tejano`) ...which was seen as more déclassé than mariachi music, featured the accordion as the melodic lead instrument backed rhythmically by the bajo sexto ...
Found on
http://www.britannica.com/eb/a-z/b/8
No exact match found.