======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '230'
                                          'artist'  'The Mountain Goats'
                                     'text_people'  'John Darnielle'
                                         'release'  'Get Lonely'
                                           'title'  'Get Lonely'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
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 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']"
                                     'discogstags'  "['rock', 'folk rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '12'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '141.6'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'COMM:iTunNORM:eng'                                 (' 000000EB 000000F1 00005217 00004C73 0000A224 0001DB9C 00007C83 000080C8 '
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'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A44 00000000009AD52C 00000000 00000000 00000000 '
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'COMM:iTunes_CDDB_IDs:eng'                          '12+7C58502FB67E601BB6231929023293B6+7614389'
'TALB' (Album/Movie/Show title)                     'Get Lonely'
'TBPM' (BPM (beats per minute))                     '141.6'
'TCOM' (Composer)                                   'John Darnielle'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         'Get Lonely'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Mountain Goats'
'TRCK' (Track number/Position in set)               '4/12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.05 dB'
'TXXX:replaygain_track_peak'                        '0.852356'

========================== row from database ==========================
                                              'id'  1324423
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Mountain Goats/Get Lonely/04 get lonely.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  230
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  5526210
                                           'mtime'  1636402038
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 04 get lonely ifs songwriter indie unsorted
                                      'tag_artist'  The Mountain Goats
                                     'tag_release'  Get Lonely
                                       'tag_title'  Get Lonely
                                             'bpm'  141.6
                                    'search_title'  'get':1 'lonely':2
                                   'search_artist'  'goats':3 'mountain':2 'the':1
                                  'search_release'  'get':1 'lonely':2
                                     'search_rest'  '00poprockelectronic':1 'get':2 'ifs':4 'indie':6 'lonely':3 'songwriter':5 'unsorted':7
                                    'search_combo'  '00poprockelectronic':8 'get':1A,6C,9 'goats':5B 'ifs':11 'indie':13 'lonely':2A,7C,10 'mountain':4B 'songwriter':12 'the':3B 'unsorted':14
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'pxs: loved']
                                        'tag_date'  2006
                                     'discogstags'  ['rock', 'folk rock']

============================== file details ==============================
                                           'mtime'  1636402038.1618378  (2021-11-08 21:07:18)
                             'size'  5526210