F/C
F Major over C · 3 fingerings
A slash chord: a F major triad with C in the bass instead of the root. The chord above stays the same — only the lowest note changes — which lets F/C walk the bass by step through a progression while the harmony holds. A simple trick that makes ordinary chord sequences sound considerably more composed.
F/C · position 1
F/C · position 2 · fret 3
F/C · position 3 · fret 8