segno

And it's a point in the music that the composer wants us to start repeating. From it could be that with there was an introduction part.

Segno. The Segno looks like an upper case “S” bisected by a diagonal line and dots. It means “sign” in Italian. Placed within the piece (not the beginning or ending), it marks a section to be repeated at a later point in the piece's progression.

[Italian, sign] A sign in a composition that indicates a repeat. "al segno" means return to the sign and perform that section of the composition again, "dal segno" means repeat from the sign.

In music, the dal segno (British: , American: , Italian: [dal ˈseɲɲo]) is often abbreviated D.S. and is used as a navigational marker. His D.S., Italian for "from the sign", appears in music and directs the musician to repeat a passage beginning with the sign shown to the right (sometimes called segno in English).

February 22, 2018, 9:00 AM · At the beginning of the score, it says 'Sul sol sin al segno,' which means stay on the G string until the star.

Da capo is Italian and it means from the top… It tells us to return to the beginning of the music. The Dal segno sign. This is used to tell the musician to go back in the music to the place where the segno sign is found (see below).

Da Capo (quite literally, “from the head”), in a musical context, means “repeat from the beginning.” Dal Segno means “repeat from the sign.” StaffPad supports both types of repeat structures, including playing to a coda sign or to a specified end within the score (“Fine”).

Taking its name from the Italian word for "head," a capo is a small device that clamps onto the neck of a guitar and shortens the length of the strings, raising their pitch.

Da Capo (quite literally, “from the head”), in a musical context, means “repeat from the beginning.” Dal Segno means “repeat from the sign.” StaffPad supports both types of repeat structures, including playing to a coda sign or to a specified end within the score (“Fine”).

D.S., or Dal Segno, means “from the sign.” It directs the player to return to a spot earlier in the score that's marked by the symbol. If the marking says D.S. al Coda, then the player is supposed to play from the to a “To Coda” marking, then jump to a coda section at the end of the music.

Da Capo (quite literally, “from the head”), in a musical context, means “repeat from the beginning.” Dal Segno means “repeat from the sign.” StaffPad supports both types of repeat structures, including playing to a coda sign or to a specified end within the score (“Fine”).

from the sign to the coda mark al coda, or dal segno al coda, literally means “from the sign to the coda mark.” D.S. al coda is an indication to start back at the segno, play until you encounter a coda, then skip to the next coda to continue.