UNEXPECTED GARBAGE about sound

I’m try to place music and it pop up - UNEXPECTED GARBAGE. when I save.

@transition fade out black in 3
INT. BLACK - DAY
music off
@pause for 2
EXT. DAD’S HOUSE - DAY
@pause for a beat
:x: - music ambient-birds
@slow pan to zone 3

Try replacing the dash with an underscore .

i don’t know what is underscore T.T

It’s _

oh thanks you

it’s work T.T thanks you for your guyssssssssssssssssssssssssssssssssssssssssssssssssssssssss