Japanese music is based on human breathing intervals rather than strict timing. Traditional music includes gagaku orchestral performances and religious chanting, while modern J-Pop emerged in the 1990s. Instrumental music has a meditative quality and is performed with composure. Traditional instruments include strings like the koto and shamisen, and percussion like the kakko and shimedaiko. Wind instruments include the shakuhachi flute and ryuteki. Performance aims to demonstrate spiritual mastery rather than just technical skill.