GarageBand for Mac: Export songs to disk
You can export a project to your computer as a stereo audio file.
Exported files can be reused in GarageBand to save processing resources by replacing or bypassing multiple regions, instruments, and effects. They can also be used with other music applications and devices, posted on the Internet (on a webpage, or in the iTunes Store, for example), added to an iTunes playlist, or uploaded to a mobile device such as an iPhone or iPad.
Export a song to disk
Choose Share > Export Song to Disk.
To rename the exported file, select the name in the Save As field, then enter a new name.
Choose a location to save the exported file from the Where pop-up menu.
Select the format for the exported file (AAC, MP3, or AIFF).
Choose the quality setting for the exported file from the Quality pop-up menu.
To export only the part of the project covered by the cycle region, or only the part of the project defined by selected regions, select the “Export cycle region only, or length of selected regions” checkbox.
The entire project, from the beginning to the end of the last region, is exported as an audio file. Any silence at the beginning or end of the project is trimmed. If the “Export cycle region only, or length of selected regions” checkbox is selected, only the part of the project between the start and end of the cycle area, or the part defined by selected regions, is exported.