Comparing harmonic reinforcement in the Octet’s Mezzo and a typical Strad‐model violin Free

Many players and listeners maintain the Octet violins have a fuller sound than conventional instruments. Preliminary data indicate Octet violins may better embody some resonant intervals that make this more likely. A theory is presented based on a study comparing the Octet’s Mezzo and a Strad‐model violin, concluding that C. M. Hutchin’s original design principle for the Mezzo fortuitously related A0 to A1 as an interval of a fifth near the two open middle strings, allowing more constructive wave reinforcement than conventional violins. The theory considers other intervals, seeking to maximize harmonic reinforcement by modifying instruments, (1) so that every bowed note is reinforced by an activated wood or air resonance by placing the notes fundamental and overtones close enough to a resonant frequency to activate it, (2) so that two resonances constructively interfere when they are simultaneously activated because they are separated by a harmonic interval, and (3) so that as many higher mode resonances as possible are activated by upper partials of the bowed notes harmonic series.