岂 a musical instrument

岂 a musical instrument

岂, originally a musical instrument, serves as a phonetic component to form characters. 

The extended meanings of 岂: how? what?

Characters formed by the phonetic component 岂

Simplified: 闿 凯 剀 铠 垲 kǎi      Traditional: 闓 凱 剴 鎧 塏
Simplified: 皑 恺 硙 桤 觊 ái kǎi wéi qī jì       Traditional: 皚 愷 磑 榿 覬