title: MPMediaQuery using MPMediaPropertyPredicate without punctuation
body: <pre><code>MPMediaPropertyPredicate *titlePredicate = [MPMediaPropertyPredicate predicateWithValue:searchText 
                                                                              forProperty:MPMediaItemPropertyTitle
                                                                           comparisonType:MPMediaPredicateComparisonContains];
  NSSet *predicateSet = [NSSet setWithObject:titlePredicate];
  MPMediaQuery *searchQuery = [[MPMediaQuery alloc] initWithFilterPredicates:predicateSet];
  NSArray *queryResults = [searchQuery items];
  </code></pre>
  
  <p>Im using the above code to return an array of <code>MPMediaItems</code> from the iTunes library where the song title matches <code>searchText</code>. However I would like it to match without punctuation, so that for example, songs with "<code>Don't</code>" in the title match "<code>dont</code>".</p>
  
  <p>Thanks.</p>