Rake db:migrate execution error

Help a newbie please.

I have everything install according to hivelogic.com instruction but I
get this…

Mycomp:~/Sites/music_library Myname$ rake db:migrate
(in /Users/Myname/Sites/music_library)
dyld: NSLinkModule() error
dyld: Library not loaded: /usr/local/mysql/lib/mysql/libmysqlclient.
15.dylib
Referenced from: /usr/local/lib/ruby/gems/1.8/gems/mysql-2.7/lib/
mysql.bundle
Reason: image not found
Trace/BPT trap

I have successfully installed mysql-2.7 via gem install for RoR mysql
driver and configured database.yml
development:
adapter: mysql
database: music_library_development
username: root
password: ###########
host: localhost

PLEASE HELP A NEWBIE! Much Thanks in advance.