Hi Gourd_44,
Yes, "pitch", as it appears in tables showing what playing position a guitarist played a song in, showcases the possible difference between the key in which a rendition sounded, and was sung, and the position that the guitarist used to play the song. A couple of examples may help to clarify the distinction.
* A guitarist who played a song in Spanish tuning, tuned to an Open G chord, at concert pitch, but capoed to the fifth fret, would be classified as playing the song in Spanish tuning, but with a "pitch" or "key" of C, by virtue of being capoed to the fifth fret.
* A guitarist in standard tuning, at concert pitch, capoed to the sixth fret, but playing out of E position, which means fingering an E chord as it is played at the base of the neck, would be classified as playing in E position, standard tuning, but at a "pitch" or "key" of Bb.
I hope this answers your question.
All best,
Johnm