Sound box: White Spruce Pine
Type of wood: Naranjillo
Tuning Pegs: Metallic Material
Bridge: Bolivian Jacaranda and bone frets
General Features: Nacre inlays
Tuning: The "re" charangon (a "5th" below a standard charango) is typically tuned: do-do, fa-fa, la-LA, re-re, la-la (cc,ff,aA,dd,aa) where the "la" ("a") is "concert a" (between 415 and 450 Hz). Note that this will play a D minor 7th chord with the open strings. (In the above example, the "la" is the course closest to the floor in normal right-handed convention).The tuning above is re-entrant, so that the "do" of the 5th course is only one whole tone below the "re" course. Other charangons are typically tuned with the same pattern, but may be either a whole tone up or down, or even a 4th lower. Sometimes courses other than the middle course have octave strings (typically a lower octave than shown).
Length: 74 cm (29.13")
Width: 22 cm (8.66")..
It's general shape and construction are very similar to the charango, but it is larger and is typically pitched 3 or 4 diatonic intervals lower (a "4th" or a "5th respectively) than a standard charango. It has 10 nylon strings grouped in 5 pairs.