sym to own file

src/flags.rs

@@ -10,6 +10,9 @@ pub struct Flags {
 
     #[arg(long, default_value_t = 44100)] 
     pub sample_rate: usize,
+
+    #[arg(long, default_value = "super_small_font.sf2")] 
+    pub sound_font: String,
 }
 
 impl Flags {