Leena Peisa, born on March 5, 1979, in Finland, is a prominent Finnish musician and composer, best known for her work as the keyboardist and backing vocalist for the symphonic metal band Nightwish. She joined the band in 2001 and contributed to several of their albums, including "Century Child" (2002) and "Once" (2004). Although she left Nightwish in 2005, her contributions during her tenure helped shape the band's sound and expand their musical complexity. Peisa's genre primarily encompasses symphonic metal, but she also explores elements of gothic and progressive rock. Her work is characterized by intricate keyboard arrangements and a blend of classical and modern influences. After leaving Nightwish, she became known for her solo projects and collaborations, including her involvement with the band 'Kivimetsän Druidi'. Leena Peisa's impact on the metal scene, particularly in Finland, lies in her ability to blend classical music elements with heavy metal, paving the way for other female musicians in a predominantly male genre. Her innovative approach and technical skills have inspired many aspiring artists in the symphonic metal community.