Font Change, staff size, lyric size

[Nels Daily]

When I try to change fonts, and then staff size,
only the staff size changes. Also I can't change
the size of the lyrics from layout.

\version "2.14.2"  % necessary for upgrading to future LilyPond versions.

#(set-global-staff-size 14)

\paper  {
  myStaffSize = #14
                #(define fonts
                (make-pango-font-tree "Times New Roman"
                          "Helvetica"
                          "American Typewriter"
                           (/ myStaffSize 15)))
}

\relative c'' {
  c4 c c c
} 
\addlyrics {
    here are ly -- rics
}

\layout {
        \context {
        \Score
                \override LyricText #'font-size = #'0.1
        }
}