I have no problem with pitch except for very low notes. I can remember in my teens (over 30 years ago) at youth club discos, the bass always seemed a semitone sharp, but I put that down to distortion by cheap equipment and over-driven speakers. Just a few years ago when I was in amateur theatricals, I accused a bass player of being way out of tune, and had to be persuaded by several others that he wasn't. These days, I've got my 12-string tuned w-a-y down to BEADF#B, and I have a real problem getting the bottom B into tune: it's too low for my tuner to register, and the beats against the octave B string arre too slow to be much help.

It's quite strange; it's not that I can't detect the pitch or distinguish the notes in the bass register: they just sound sharp.

Steve