[spkguitar]

So... the examples in the guide I linked to didn't cut it for you?

Copied directly from that guide:

Range

The Audio Range pop-up menu determines the
frequency range for analysis: Low, Mid, High, or
Wide. For low-range material, such as a bass guitar,
select Low. For mid-range material, such as
male vocals, select Mid. The high range control
is for material with a high fundamental frequency,
such as female vocals. For more complex
material that covers a broad frequency
spectrum, select Wide.

In Polyphonic mode, Wide is the default setting
and is usually best for all material when using
the Polyphonic audio type.

In Monophonic mode, Mid is the default setting
and is usually matches the range of most monophonic
material.

The range pop-up menu is unavailable in Rhythmic
mode and Varispeed mode.

I don't know if I can give any better examples than that. Seriously. That is very straight-forward and to the point.