This time I tried it, and I have to ask if you seriously got a bass to tune down 2.5 steps? Even my Fender Jazz with the .110 e-string couldn't handle tuning all the way down to B without becoming a sloppy, clanking mess. C# was playable, barely. C was pretty much a no-go, but B???
Yup, I do it frequently. And with a cheap-ass Austin 4-string (I'm nothing if not frugal lol). Of course I do get a bit of rattle on the 4th string when dropped that low, but it's nothing that can't be managed by applying a lighter pluck. Also when tuned down that low, I tend to switch to a pick instead of finger style, to get a crisper, more noticeable tone. Lower than that, though, and yeah, it's like trying to play a bass strung with spaghetti noodles. There's a reason you don't see any Korn songs on my tab list. Drop a 4-string to A and you're liable to trip over the strings.
As for this song in particular, to play it accurately you basically have to turn your 4-string into a 5-string, and yeah, that means dropping all strings down two-and-a-half steps. Well, except for the first string. It's not used, so you don't actually HAVE to drop that one down.
The simple solution is to buy a low B string from a five string set and put it where your E string is now and move the E to the A position, the A to the D position, the D to the G position and the G in the bin, (howay man, who REALLY likes the G string?). Jay will be along shortly to extol the virtues of a four string tuned B E A D
