Forte subito (abbreviated as f sub. ) suddenly became stronger.

Piano subito (abbreviated as p sub. ) suddenly weakened.

Related terms in the staff are:

1, Allegro (slightly faster)

2. Allegro (fast)

3, the most urgent board (Prestissimo) (fast)

4, the original speed (a beat)

5, gradually slow down (Ritardando/rit/ritard)

Extended data:

The earliest birthplace of staff is Greece, and its history is much earlier than that of simple staff. In ancient Greece, the main form of music was vocal music, and the pronunciation of lyrics was expressed by letters such as A, B and C.

In Roman times, another symbol was used to represent pitch. This notation, called Neuma, is the embryonic form of the staff.

In the13rd century, the four-line score used all black lines, and only one Latin letter was written in front of the line to indicate the absolute pitch of the line. This is the prototype we use today.