ΔE 26.2, loose: different enough that you should pick on purpose. Bright Brass (Met.) is noticeably lighter, much more muted than Glistening Gold.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 26). Bright Brass (Met.) is noticeably lighter, much more muted than Glistening Gold.
The same difference applies the other way round: Glistening Gold is noticeably darker, much more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Glistening Gold on the colour wheel See Bright Brass (Met.) on the colour wheel
All matches: Glistening Gold equivalents · Bright Brass (Met.) equivalents