It is suggested using thin tung oil coating for marimba bars in respect of variations of natural frequency and internal friction, operational processes and cost of different coatings.

• 从共振频率减低率，内部摩擦增加，涂装操作难易性，涂料成本等评估涂装对木琴琴键音响性质影响时，建议采用桐油且避免厚涂。