dynamics: sf vs sfz

[Kenneth Wolcott]

Hi;

  Musical question here, not specific to Lilypond.

  I have an excerpt that I am engraving as a sample which uses the dynamic "sf".

  In the Wikipedia article

https://en.wikipedia.org/wiki/List_of_musical_symbols

"sfz" is mentioned but not "sf".

  Ah, I see in my printed Norton/Grove Concise Encyclopedia of Music
that "sf" and "sfz" are both the abbreviations of sforzando and/or
sforzato.

  Answered my own question :-(

Thanks,
Ken Wolcott