Q: How come you said the next song lasted for 3:19 when really it lasts for 3:20
A: at some point i probably looked at the time while the playhead was at or just after the last word, and perhaps didn't account for the last chord being held. maybe just the trailing silence at the beginning and end adds up to 1 second. maybe i made the 3:19 estimate before the guitar fill at the intro was added. maybe your music player rounds up by 1 second. all these are possibilities