The Gran Concierto model is the result of years of work around the guitar. Its front pattern is inspired by the traditional Spanish guitar and its construction system is the result of my research, paying special and careful attention to geometric proportions. It’s built with a bracing system of my invention. Standard string length is 650 mm, although it’s possible to order a different length (640, 630 or even 620 mm.) and the sound results in terms of volume and timbre are very similar for this model. In such cases the relative dimensions of the instrument may or may not be proportional according to customer preferences.