Using the criteria, you find important, what is the "best" album length for you: 40,45,50,60,70 minutes? For me, it seems 45-55 minutes is best. Anything longer just becomes a meandering musical miasma. Although, some bands use a longer album length to convey the musical theme. Discuss. Exp: Porcupine Tree's albums on average are 60-70 minutes(give or take) Their latest FOABP clocked in at 50. I think it was a master stroke that they did that. Anyone?