The second aim of this study was to investigate the effects of moisture content, annual ring angle, and coating on the vibrational characteristics of padauk, selangan batu, and belian wooden bars.

• 并以花梨木、巴杜柳桉及婆罗洲铁木树种，探讨含水率、年轮倾斜角与涂装对木琴振动特性之影响。