On the writing for Senjutsu, Bruce also told K! that the band didn’t go into the studio with the intention of making a double-album.
“We had no clue, absolutely no idea, what the album was. We didn't go in there with any set idea or preconception,” said Bruce. “We had a few ideas. We went into the studio and tried them out, and when they worked, we just recorded straight away. So while we were rehearsing, everything was being recorded – the tape was rolling the whole time.
“Steve [Harris, bass] would literally lock himself away for two or three days, and we'd all turn up and play pinball,” he continues. “And then he'd say, ‘I think I've got one, chaps. Oi! Everybody in the studio!’ Boom. The stuff I wrote with Adrian was a bit more conventional – we’d stand around and play guitar and sing and do that until we thought we had something. Then we'd rehearse it and put it straight down. It’s more organic, if you like. Steve tends to be quite detailed and meticulous in exactly how he wants it.”