Complex sentence: From September-October 2013, Barnett went on tour with fellow singer-songwriters Frank Hamilton and Orla Gartland and finished his third EP, mixing in hotel rooms as the tour progressed.
Split into simpler sentences: From September-October 2013, Barnett went on tour with fellow singer-songwriters Frank Hamilton and Orla Gartland. At the same time he finished his third EP, mixing in hotel rooms as the tour progressed.