These electromechanical units were highly successful and were produced until 1994. In 1977, the metronome pendulum Franz introduced the first significant improvements on Maelzel mechanism. Moving parts were suspended in the box in such a way that they enable them to self-level when the box was placed on an inclined surface. A mechanism to avoid accidental blockage was introduced in the model as well as an adjustment to offset any failure due to manufacturing variations. These devices were produced until 1990. From 1950 to today numerous versions of the electronic metronome have been introduced, adapting to the time and fashion of the moment. Early models of electronic metronomes were the Metronoma and the Stamford.
Later, Seth Thomas, Sabine and Methone in United States. Metronomes that operate in this general principle as in Switzerland, England Metrotone or Wittner Cadenzia were introduced in Germany. The accuracy of these models suffer from the difficulty to compensate for the non-linearity of this type of circuit in the range of full time. Obtaining good accuracy is quite difficult to achieve. Late 1970s electronic digital techniques it had developed to the point that became economically feasible to apply them to the design of a metronome. Accuracy was improved by a factor of 10 or more in comparison with the best available analog model. Capacity and low cost of microprocessors has made it possible to add other functions in addition to press at the proper tempo. Accented pulses and other features are possible at a reasonable cost. These instruments have been introduced by manufacturers in Germany Wittner, Seiko in Japan and Franz in the United States.UU., among others.