 
 <prompt> Wetin be di popular song wey dem write dat time? Based on di last question, write one explanation wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: The lyrics of the modern Japanese national anthem, Kimi ga Yo, were written for Heian period, as was The Tale of Genji by Murasaki Shikibu, one of the first novels wey dem ever write. Murasaki Shikibu's contemporary and rival Sei Shōnagon's revealing observations and musings as an attendant for the Empress' court dey recorded collectively as The Pillow Book for the 990s, wey reveal the everyday lifestyle for the capital. The Heian period produce plenty poetry including works of Ariwara no Narihira, Ono no Komachi, Izumi Shikibu, Murasaki Shikibu, Saigyō and Fujiwara no Teika. The famous Japanese poem wey dem sabi as the Iroha (いろは), wey authorship no clear, e too dey written during the Heian period. 