Is there a proper way to notate a chord that rings (sustains) a full bar?
I've always used the tablature version of writing the word "ring" under the chord.
In this example only the A chord is held a full bar.

| A | F#-7 | B-7 | E7 |
ring . . .

What about the Fermata? Is that only for a musical note, chord, or rest "beyond" its given time value?

How do you notate a chord that rings for a bar?

Thanx
- Robert