Complex sentence: Renaud Ghilbert, Sergej van Bouwel and Jan Duthoy but were joined by drummer Jakob Nachtergaele, playing the drums and woodblocks on one song.
Split into simpler sentences: Renaud Ghilbert, Sergej van Bouwel and Jan Duthoy. In came drummer Jakob Nachtergaele, playing the drums and woodblocks on one song.