<span>Simple and/or repetitive chord progressions. </span><span>A strong connection--both musically and lyrically--to traditional music of that country. </span><span>Acoustic instruments </span> <span>bluegrass music developed from traditional folk songs brought over by immigrants from the British Isles and evolved in isolation in the Appalachian mountains. Traditionally it is played only on acoustic stringed instruments. Country music evolved from a wide range of sources, including: western swing, blues, and traditional folk music from a diverse range of cultures. The instruments used and their sources are also very diverse: fiddles and accordians from Europe, Guitars from spain, steel guitars from Hawaii. Bluegrass has remained relatively unchanged compared to Country music which encompasses a huge range of styles.</span>
