 Angus said that when composing with Malcolm they share ideas to make each track " work together " to form a complete album , and Johnson added " these songs belong together . It 's about five boys having a damn good time in a studio . " With 15 songs and a running time of over 55 minutes , Black Ice has the longest running time of any AC / DC studio record . Malcolm said that " about 60 or 70 song ideas " were developed , but Angus stated that most were discarded because they were not " representative of how we are " . Angus also said that the first attempt to sequence the album resulted in a track list comprising eleven songs , " but as the days went by each band member voted for a new track , and then another , and other one " so they decided to include all the recorded tracks . 
