SOLUTION:

My sincere thanks to Mathew, Andrew, Brett, Ben, Chenpo, and Martin for their help getting the Designer / Event interactive music system to work using Xcode on OSX 10.6.  In retrospect, the solutions were obvious, but they sure had me going for awhile! If anybody else out there wants to do something similar, here's a working Xcode project that plays the FMOD interactive music examples:

http://www.twittering.com/twittering/code/FMOD/musicExampleXcode2.zip
(the archive is a little big [18Mb], because the soundbank and libraries are included twice: in the project folder, and in the application bundle)

some points to consider:

a) the Run Script (last build stage, under Targets) *is* correct, and is required to run the program -- even in the debugger. This is because the Event library needs to access the Ex library, and they must be explicitly linked (just putting them next to each other in the Frameworks folder does not work). To simplify the Run Script, I placed the two libraries in the build directory, and copy from there. 

b) C++ and relative file pathways don't play nice in Xcode. SO, to simplify matters, and to produce a self-contained, standalone, application, I put the .fev / .fsb (events, and sound bank) files in the Resource folder of the Xcode project, and access them from the application bundle (MEDIA_PATH = "$application_name.app/Contents/Resources/"), instead of an external "media" folder.

c) to prevent hiccups at loop points, build the sound bank with the "Stream from disk" option.

d) eventsystem->update() must be called continuously. This is absolutely necessary for correct event functionality, yet is easily accomplished by firing off a recurring timer in "awakeFromNib" (I suppose a background RunLoop thread would work as well, but apparently that's an unnecessary level of complexity, at least for this app).

e) the "intensity" slider is only active for the "retrorock" cue.

Questions and comments welcomed, either here on the forum, or at twittering@gmail.com

   - pdx

===================
Peter "pdx" Drescher
Twittering Machine
twittering@gmail.com
studio: 425.202.7721
cell:  	650.473.1953
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