Free improvisation
From ArticleWorld
Free improvisation (also known as free music), is improvised music without any rules beyond the taste of the musicians involved. It also lacks any particular style. What is deemed as free improvisation was developed a great deal in the U.S. and Europe in the mid to late 1960's.
Out of jazz
Much of this was to be born out as an outgrowth of free jazz and modern classical music. Free improvisation is considered to be both a musical genre and a technique. This is something that many have devoted years to master after they have mastered their respective genre styles and want to go beyond the boundaries of their styles, or want to have a means to express this style.
The base
The base of a free improvisation is chosen by the performer which may choose to play in a certain style or key. Although free music is far more often atonal or at a certain tempo, but would be considered unconventional.
Typical and commonly structured songs are highly uncommon in free improvisation. There is generally more emphasis placed on mood, texture, and on performing gesture than on just a melody, harmony, or predictable rhythm. These elements are improvised at will, as the music progresses during the course of the free improvisation.
Popularity
Free music is not very well known in the current social groups of modern music. It is a relatively little known and is a loosely defined genre. None of its components or expressions can be said as being famous among the general public, however, in experimental groups these free musicians are often well known and are highly respected.
Some of the musicians of this field are: Derek Bailey, a guitarist; Conny Bauer, a trombonist; and Evan Parker, a saxophonist.
Many of these musicians are in this for the sole expressionism of the music and haven’t focused on the popularity that could be obtained.