Complex sentence: After Anthrax finished recording "Spreading the Disease", there was still some studio time left, so members Scott Ian and Charlie Benante called some friends, practiced some songs, and recorded it all within a week.
Split into simpler sentences: After Anthrax finished recording "Spreading the Disease", there was still some studio time left. So Scott Ian and Charlie Benante called some friends, practiced some songs and recorded it all within a week.