GarageBand: May unexpectedly quit when changing input level in Learn To Play guitar lessons

When adjusting the input level in Learn To Play guitar lessons, GarageBand may unexpectedly quit if you are using an Apogee Duet 2.

Adjust the guitar's level on the Apogee Duet 2, or in the Apogee Maestro 2 software.

This document will be updated as more information becomes available.

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