Forzando in Lilypond 2.20

[Mike Dean]

Two questions in typesetting a piece by Haydn:

1. Does Fz needs to be defined (unlike sfz)?

2. where should 

fz = #(make-dynamic-script "fz")

be placed in order not to generate an error?

C:/Users/Mike Dean/AppData/Local/Temp/frescobaldi-lis_ksvl/tmpgdr3w9ef/J-Haydn-Minuet in C-correct.ly:14:1: error: not a note name: fz

fz = #(make-dynamic-script "fz")

C:/Users/Mike Dean/AppData/Local/Temp/frescobaldi-lis_ksvl/tmpgdr3w9ef/J-Haydn-Minuet in C-correct.ly:14:4: error: syntax error, unexpected '=', expecting '}'

fz

= #(make-dynamic-script "fz")

C:/Users/Mike Dean/AppData/Local/Temp/frescobaldi-lis_ksvl/tmpgdr3w9ef/J-Haydn-Minuet in C-correct.ly:38:1: error: syntax error, unexpected '}'

Mike Dean