'In 1711, trumpeter John Shore invented this two-pronged pitch setter'
Tuning fork
INVENTIONS & DISCOVERIES: In 1711, trumpeter John Shore invented this two-pronged pitch setter
In 1711, trumpeter John Shore invented this two-pronged pitch setter
In 1711, trumpeter John Shore invented this two-pronged pitch setter
INVENTIONS & DISCOVERIES
Tuning fork
INVENTIONS & DISCOVERIES