Regulations
EN: https://asiapiano.net/apc2026/regulations-apc-2026/
JP: https://asiapiano.net/apc2026/regulations-apc-2026_jp/
CH: https://asiapiano.net/apc2026/regulations-apc-2026_ch/
KOR: https://asiapiano.net/apc2026/regulations-apc-2026_kr/
HAN: https://asiapiano.net/apc2026/regulations-apc-2026_han/
