Pretty good rig, but mine doesn't like bass notes below low G very much, though harmonics will avoid this problem like Amos mentioned.

I used mine to change tunings at an unplugged short solo gig one time and a guitarist in the audience told me afterward he'd never heard anyone tune so fast and precisely by ear, not realizing I had the gizmo clamped on the headstock. I don't remember if I let him in on the dirty little secret.

The most unobtrusive tuner.

Mooh.