Answer:
Trial and error is a fundamental method of problem-solving. It is characterized by repeated, varied attempts which are continued until success, or until the practicer stops trying.
Explanation:
Trial-and-error is one of the most useful forms of learning. When we make an error, or fail at something, we give ourselves an opportunity to analyze that failure, make a change, and then try again. ... In many ways, trial-and-error is the only form of learning we really have.
The result from glen branca’s approach to his amplified is Tunings
It has gotten a lot more popular over time females are also aloud to do ballet now unlike when it first started, it was only men .
Hope this helps a little :)