Classical singers usually have a more trained and refined vocal technique, allowing them to sing in a range of styles and languages. They may perform opera, oratorio, cantata, lieder, and other forms of classical music. Classical singers often perform with orchestras and ensembles, and some famous classical singers include Luciano Pavarotti, Maria Callas, Placido Domingo, and Renee Fleming. Folk singers typically sing songs that reflect the culture and traditions of a particular region or community. They may perform songs that have been passed down through generations or create new songs in a traditional style. Folk singers often use simple acoustic instruments such as guitar, banjo, or mandolin to accompany their singing. Some famous folk singers include Bob Dylan, Joan Baez, Pete Seeger, and Woody Guthrie.