Does the subject want to ask, "Are Boya Piano Competition and Fort Kaysers Competition official?" Ordinary. BOYA Piano Competition, referred to as Boya for short, is jointly sponsored by China International Piano Society and Suzhou Miao Yin Culture Communication Co., Ltd. and is protected by law, while Caesar Castle Competition is jointly sponsored by China Musical Instrument Association and Zhujiang Piano Group, which is one of the largest and most influential piano competitions in China, so Boya Piano Competition and Caesar Castle Competition are formal.