Funk is a distinct style of music originated by African-Americans. Funk best can be recognized by its syncopated rhythms; thick bass line (often based on an "on the one" beat); razor-sharp rhythm guitars; chanted or hollered vocals; strong, rhythm oriented horn sections; prominent percussion; an upbeat attitude; African tones; danceability; and strong jazz influences.
Compared to funk's predecessor, the soul music of 1960s, funk typically uses more complex rhythms, while song structures are usually simpler. Often, the structure of a funk song consists of just one or two riffs. Sometimes the point at which one riff changes to another becomes the highlight of a song. The soul dance music of its day, the basic idea of funk was to create as intense a groove as possible.
One of the most distinctive features of funk music is the role played by bass guitar. Before soul music, bass was rarely prominent in popular music. Players like the legendary Motown bassist James Jamerson brought bass to the forefront, and funk built on that foundation, with melodic basslines often being the centerpiece of songs. Notable funk bassists include Bootsy Collins and Larry Graham of Sly & the Family Stone. Graham is often credited with inventing the percussive "slap bass technique," which was further developed by later bassists and became a distictive element of funk.
Since funk is strongly rhythm-oriented, many funk songs contain no solos. Those that do often feature skillfully improvised horn solos. Some of the best known and most skillful soloists have jazz backgrounds.
In funk bands, guitarists typically play in a percussive style. "Dead" notes often are used in riffs to strengthen percussive elements. When playing with a horn section, guitarists usually play no solos; but if a band's style is closer to a "funk rock" approach, then a guitarist may play solos with a distorted sound.