create_play_counts.php
  Creates an XML file containing the SQL database's playcount for each
  song.  Can be used to update play counts in an iTunes database.

get_*.php
  Various scripts to run reports on the inserted data

init_db.php
  Sets up the MySQL database.  Should only be run once.

insert_allplays.php
  Inserts play information from AllPlays.xml into the SQL database.
  
insert_allplays_test.php
  Same as insert_allplays.php, except it does not insert anything into 
  the database.  Played tracks that cannot be found in the SQL database
  are highlighted in red.

itunes_xml_parser_php5.php
  XML parsing functions.  Only used for AllPlays.xml.  iTunes.xml parsing
  uses a different method because memory usage is too high otherwise.

mdb_clean.php
  Removes entries from SQL database that no longer exist in iTunes database.
  Should be run immediately after mdb_refill.php.
  Very dangerous: clicking any link deletes that info from the SQL db.

mdb_refill.php
  Copies information from iTunes Music Library.xml into SQL database.
  If tracks in the XML match tracks already in SQL, they will not be re-added.
  However, tracks are matched by names, so if you have updated track names
  in iTunes (fixed spellings, etc.) they will be seen as new tracks unless
  the SQL information is first updated to match the new iTunes info.

mdb_refill_test.php
  Same as mdb_refill.php, except it does not insert anything into the database.
  This should be run before any mdb_refill.php operation to ensure that
  duplicate tracks are not being added to the SQL database.

musicdb_vars.php
  General variables and support functions
