Key and tie questions

[Andrew Musselman]

Hi all, I'm not seeing a key signature show up when I do this:

```\version "2.22.2"
\relative
\key d \major
{
    <<
    {
        a'8 g'8 \tuplet 3/1 {f' c' b} c'8 c'2
    }
    >>
}```

and when I try to put a tie between the triplet and the next note and put a
tilde after the `b` in the triplet I get this error:

Interpreting music...
the-mountain.ly:7:45: warning: unterminated tie
a'8 g'8 \tuplet 3/1 {f' c' b
                                            ~} c'8 c'2

Any clues how to fix these?