Jazz music has evolved to the point where basic signature of the style has minimized into an influential element. For example, the Jazz music of the 80’s electronica music of IDM which stand for Intelligent Dance Music where such artists like Bjourk is known for. The drum and bass is another form of electronica that does not use the typical improvisation that is one of the key elements of Jazz music. In fact, this is not thought of as Jazz music at all, but a style that was influenced by Jazz music.
There are skeptics who do not believe the music should be called Jazz. However, Christina Aguilera’s Back To Basics album used Jazz brass instruments with urban beats. Jazz music according to the National Public Radio filed a report stating that the music is becoming more popular with the public regarding the interest of the buyers of jazz music.
Today the contemporary gospel music uses guitars, keyboard, piano, drums and brass instruments for their sound. One can usually tell during the ballads how Jazz chord harmonies are used in the keyboard and piano. The harmony in Barbershop music like Jazz came from the African American Black gospel church community which use close four part harmony without accompaniment. This particular style of music without accompaniment is known as A capella. The Mills Brothers were popular Jazz musicians who learned how this harmonization in the barbershop owned by their father.
In many Jazz groups such as Manhattan Transfer, New York Voices, Acoustix, Bara Vox, Beach Front, BR6 and more the harmonies are similar to that of barbershop. These harmonies are from the chromatic chordal harmony found in Jazz Music. The group Take 6 has expanded the traditional four part harmonies to six tones. Jazz Music did not stop there , but grew into an array of different styles that produce different aesthetic appeal.
The essence of Jazz music is the ethereal atmosphere of the dimensional harmony created by kaleidoscope of chromatic tones. It is the pulsating back beat of syncopating African rhythms through the rumble of the drums, or soft sound of the brush to the snare. The true essence of Jazz music is present in its ability to shape the music through tones, the syncopation of speech rhythm, the chromatic harmony, improvisational solos, and constant motion of the bass. It is the free structure made from a balanced structure, and a music expressed from the soul.