volumelevel

Hi DVE_7218,

The steps below provide guidance for adjusting GarageBand track volumes:

"Adjust a track’s volume level

• In the GarageBand on Mac track header, drag the Volume slider left or right to lower or raise the volume level.
• 
• Note: You might have to resize the track header to see the Volume slider.
• Option-click the slider to return it to a neutral level (0 dB gain).

The level meter in a track’s Volume slider shows the output volume for the track as the project plays. You can watch the level meter as you record to the track to see if clipping occurs on the track."

Set track volume levels in GarageBand on Mac - Apple Support

Cheers.