India's classical music tradition is millennia long and remains important to the lives of Indians today as a source of religious inspiration, cultural expression, and entertainment. Indian classical music (marga) is monophonic, and based on a single melody line or raga rhythmically organized through talas. Carnatic music is largely devotional; the majority of the songs are addressed to the Hindu deities. There are a lot of songs emphasising love and other social issues. In contrast to Carnatic music, Hindustani music was not only influenced by ancient Hindu musical traditions, Vedic philosophy and native Indian sounds but also by the Persian performance practices of the Afghan Mughals. The origins of Indian classical music can be found from the oldest of scriptures, part of the Hindu tradition, the Vedas. Samaveda, one of the four vedas describes music at length. Chinese classical music is the traditional art or court music of China. It has a long history stretching for more than three thousand years. It has its own unique systems of musical notation, as well as musical tuning and pitch, musical instruments and styles or musical genres. Chinese music is pentatonic-diatonic, having a scale of twelve notes to an octave (5+7 = 12) as does European-influenced music. Persian music is the music of Persia and Persian language countries: "musiqi", the science and art of music, and "muzik", the sound and performance of music . See: Music of Iran, Music of Afghanistan, Music of Tajikistan, Music of Uzbekistan. To the right are some music samples.