Figure 8.

Sound hole shapes and violins made by Savart and Chanot in the early 1800s [49–51]. While the Savart and Chanot instruments, which had notable design differences from classical violins, were unsuccessful, they were made for the violin repertoire and were consistently referred to as violins by their creators and in subsequent literature [49–51]. In particular, Savart's instrument is usually referred to as the ‘trapezoidal’ violin and Chanot's instrument is usually referred to as the ‘guitar-shaped’ violin [6,50,51].