Jazz fusion (see also fusion) is a sub-genre of jazz which merges jazz and other styles of music. In particular this can include funk (see jazz-funk), rock (see jazz rock), electronic, rnb and ska (see ska-jazz). Less common fusion genres include pop, folk, metal, reggae and hip hop. Fusion albums, even those that are made by the same group or artist, may include a variety of styles. In the late 1960s, jazz musicians began mixing the forms and improvisational techniques of jazz with the electric instruments of rock and the rhythms of soul and rhythm and blues.