Norteño, also known as música norteña or conjunto, is a style of music that developed in South Texas and Northern Mexico. In South Texas the style was known as conjunto. This style of music is the main ancestor of Tejano music. This category embraces all the different syles of music, artists, and songs that feature the basic instruments of the style, the diatonic button accordion and the bajo sexto guitar. These include but are not limited to the following styles of music and songs: música norteña, norteño, conjunto, orquesta, ranchera, corridos, quebradita, tambora, huapango, and norticumbia.