6-string versions are based on a 1943 Hermann Hauser guitar. 7-string guitars are based on a slightly larger 1937 Hauser (ex-Segovia) design. They are full bodied guitars offering the professional player a responsive, reliable and elegant concert instrument. I use a seven fan bracing pattern with open harmonic bars to create an instrument with good volume and sustain, and a wide tonal palette. All of my tonewoods are well-aged and stable. I pay particular attention to the quality and aging of my top and brace wood. All Concert models are french polished.