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Logic Pro 9 User Manual - Help Library - Apple

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You can remotely switch between channel strip settings by sending MIDI program change<br />

messages. This allows you to select your favorite sounds (consisting of a complete channel<br />

strip setting that can contain a software instrument and effect plug-ins) by pushing a<br />

button on your MIDI keyboard. This feature is named channel strip performances, and is<br />

designed for live use of <strong>Logic</strong> <strong>Pro</strong>.<br />

Important: Only program change messages sent on MIDI channel 1 will switch between<br />

channel strip performances. All program change messages sent on other MIDI channels<br />

are forwarded to Audio Units instruments, if applicable.<br />

Channel strip performances can be used for all audio channel strip types. They are saved<br />

in the Performances sub-folder (in ~/<strong>Library</strong>/Application Support/<strong>Logic</strong>/Channel Strip<br />

Settings/Channel Strip name). The performance names start with the corresponding<br />

program change number (for example, 001Piano, 045FlangeGuitar, 111ArcoCelloHall).<br />

There are 128 performances (corresponding to 128 available program change events).<br />

To create a performance setting<br />

1 Configure a channel strip that you want to have available as a performance (by opening<br />

a channel strip setting from the factory library and making changes according to your<br />

needs, for example).<br />

2 Click the Setting button at the top of the channel strip, then choose Save as Performance<br />

from the menu.<br />

3 In the dialog that appears, enter a performance name, choose a program change number,<br />

and click OK.<br />

4 Send the program change number from your MIDI controller.<br />

When a channel strip receives a program change message (on MIDI channel 1) that<br />

corresponds to an assigned performance number, it loads this performance.<br />

Note: If an unassigned program change value is sent, the channel strip ignores the<br />

message, and the currently loaded channel strip performance setting remains in place.<br />

276 Chapter 10 Working with Instruments and Effects

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