#1
I'm sorry if this is the wrong forum, but what is the BPM for Surfing with the Alien? The tab from the book says 171, but the Guitar Pro and Power Tabs say 168. I just wanted to be sure.
#5
Three beats per minute is virtually unnoticeable. Unless you are EXTREMELY familiar with the song, or have a very good sense of rhythm ('good' as in you're probably some amazing studio drummer or something), you wouldn't be able to tell the difference. I'd say 5-8 bpm is probably the low threshold for where an average person could tell the difference.