Logic Pro 9: Audio and Music Production 5.2 the Big Picture ­ Forming your Basic Arrangement In Chapter 4, we explored the basic principles of getting audio regions into your Logic project ­ as audio recordings, prerecorded audio files, Apple Loops, or REX2 files. However, having acquired these assets, we now need to start think- ing about how we can organize and edit this raw material together to form our finished song. As you'd expect, the precise way you execute this will vary given the material you're presented with, so you'll need to be conversant with the var- ious approaches and solutions for handling and editing audio regions in Logic. Broadly speaking, your goals will be focused on two levels of interaction. First, you'll need to pay attention to the overarching structure and arrangement of the project, using the various editing tools to bring instruments in and out of the song. Second, you'll need to investigate the detailed qualities within each performance ­ like the choice of different takes at various points of the song, for example, through to the timing of each note that is played. The first simple technique, therefore, is the ability to start moving regions within your arrangement ­ making copies of regions, looping regions, or mut- ing them. You can move a region simply by selecting it and moving it to a different position in the Arrange area, either at a new point in the timeline or even onto a completely different track. Holding down Alt as you perform the drag allows you to create a copy of the region ­ maybe copying over a chorus Figure 5.1 Forming the basic arrangement ­ either by dragging regions to new locations and copying them (by holding down the Alt key), or muting them. 86