What main precaution should be taken to avoid damaging the bars of a marimba?

Choosing to keep the marimba covered when not in use is a crucial precaution for preserving the integrity of the instrument's bars. Covering the marimba protects it from dust, spills, and other environmental factors that could lead to damage over time. Exposure to dust can cause buildup that not only affects the instrument's sound quality but also creates wear on the bars. Additionally, marimbas are sensitive to changes in humidity and temperature, which can lead to warping or cracking of the bars. A cover acts as a barrier, ensuring that the instrument remains in a stable environment when it is not being played.

While using softer mallets, playing with a lighter touch, and maintaining a climate-controlled environment are all important aspects of marimba care, they do not provide the same level of preventive protection when the instrument is not in active use. Keeping the instrument covered contributes significantly to its longevity and vibrant sound.