Guitar sheet music question Answered

The difficulty is obvious (if you play guitar, that is)--The same note is available in different spots on the fretboard. Fingering is, and has always been, the art of out-thinking the limitations of the instrument. To some extent, it's up to the artist. In some instances, there's only one fingering possible. In others, multiple options are available. And whether chords inversions can be substituted is up to the artist (or the composer.) Any riffs or runs before, during or after the chords often dictate where the chord is played. This is one reason tabs persist--they explicitly show fingering.