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Something to consider adding to the article - from the Forum:
If you just want to pull the custom field value
out and use it however you want, try this in your
template (within The Loop):
<?php
foreach(get_post_custom_values('music') as $song) {
echo $song;
} ?>
Make sure the argument (i.e. custom field key) passed
to get_post_custom_values()is the correct one.