Overtone is a skill to play the guitar, playing along with the skill and moderation, in addition to any formal rules, let people know what I hear is a personal overtones.

SenMao invited to participate in the production of Taiwan”s newly independent brand Overtone 2015 Spring image series.

Overtone 是彈奏吉他的一種技巧，隨著彈奏者的技巧與拿捏，可以在任何規則形式之外，讓懂我的人聽出屬於個人的弦外之音。

森茂受邀參與製作台灣新興獨立品牌Overtone2015年春夏形象系列產品。