Complex sentence: The EP proved to be successful in the local underground scene and generated buzz for the band, resulting in a three-week tour across California where the band played in cities such as Los Angeles for the first time.
Split into simpler sentences: The EP proved to be successful in the local underground scene and generated buzz for the band. After the EP's release, the band embarked on a three-week tour across California, playing in cities such as Los Angeles for the first time.