'In 1816 Johann Nepomuk Maelzel patented this device used by musicians to keep correct tempo'
Metronome
INVENTORS & INVENTIONS: In 1816 Johann Nepomuk Maelzel patented this device used by musicians to keep correct tempo
In 1816 Johann Nepomuk Maelzel patented this device used by musicians to keep correct tempo
In 1816 Johann Nepomuk Maelzel patented this device used by musicians to keep correct tempo
INVENTORS & INVENTIONS
Metronome
INVENTORS & INVENTIONS