Complex sentence: At that session, in April 1998, they recorded their debut release, the "Sweater" EP, its title track "Sweater" was featured in the Triple J Hottest 100 of 1998.
Split into simpler sentences: At that session, in April 1998, they recorded their debut release, the "Sweater" EP. Its title track, "Sweater", was featured in the Triple J Hottest 100 of 1998.