Ok, recently I recieved an offer from one of the local bands in my city to be their bassist, and I really want to do it, because I really like their sound, they are one of the biggest bands in the city and I get along with the guys in the band really well. The only problem is, their guitarist tunes down to low F# (as in the low F# on the second fret of the low E string on a standard tuned bass). I usually play a four string tuned to standard tuning. So I'm wondering what to do. I have a five string that I don't really like, but i suppose I could use it. Would it even be possible to tune the low B down to F#, and then the rest of the strings accordingly? Does anyone make strings heavy enough to do that? Please help.