I'm working on a project using music sheets, but I don't understand music theory or notation.
The sheet I'm studying is The Four Seasons. From what I gather the sheet was written with the MuseScore software (the accompanying MIDI has the name of the music and author at the meta event 09 and 10).
Before the time signature for the piece there's a eighth note with the fortissimo mark.
What is the meaning of this note?