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