There are two font sizes, Normal and Small as shown below. This is part of the editing and input process.

 

In the Editor, tap/click  the ‘S’ (small) or ‘N’ (normal) buttons to change the size of the chords at the current position until the next chord size marker.

• iOS, Android
• Mac, Windows

The button toggles between N and S

 

 

Click the N or S button at the top next to the chord input field