I created a new piano project in Garageband. When I click the on-screen keyboard, it plays notes. On a normal piano, one of the pedals causes notes to continue playing even after they are released (I believe they eventually begin to slowly fade away). How can I get this same effect in Garageband?
The ⇥ Tab key functions as the sustain pedal in the on-screen keyboard, if you switch to the Musical Typing mode:
If you must use the Keyboard mode, you can insert pedaling after the fact in the Score editor: