======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '165'
                                          'artist'  'Amália Rodrigues'
                                     'text_people'  'Artur Fonseca/Reinaldo Ferreira/V.M. Sequeira'
                                         'release'  'Uma Casa Portuguesa'
                                           'title'  'Uma Casa Portuguesa'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['female vocalists', 'world', 'fado', 'portugal', 'portuguese']"
                                     'discogstags'  "['folk, world, & country', 'fado']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '137.478'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Uma Casa Portuguesa'
'TBPM' (BPM (beats per minute))                     '137.478'
'TCOM' (Composer)                                   'Artur Fonseca/Reinaldo Ferreira/V.M. Sequeira'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Uma Casa Portuguesa'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Amalia Rodrigues'
'TPE2' (Band/orchestra/accompaniment)               'Amália Rodrigues'
'TPUB' (Publisher)                                  'Blue Note'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'fado']
'TXXX:lastfmtags'                                   ['female vocalists', 'world', 'fado', 'portugal', 'portuguese']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.443050'

========================== row from database ==========================
                                              'id'  1492249
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/Amalia Rodrigues - Uma Casa Portuguesa/01 Uma Casa Portuguesa.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  165
                                           'genre'  loc-unsorted
                                        'filesize'  2647688
                                           'mtime'  1678456336
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe Amalia 01 loc unsorted
                                      'tag_artist'  Amália Rodrigues
                                     'tag_release'  Uma Casa Portuguesa
                                       'tag_title'  Uma Casa Portuguesa
                                             'bpm'  137.478
                                    'search_title'  'casa':2 'portuguesa':3 'uma':1
                                   'search_artist'  'amalia':1,2 'rodrigues':3
                                  'search_release'  'casa':2 'portuguesa':3 'uma':1
                                     'search_rest'  '00mid':1 'amalia':4 'europe':3 'loc':5 'north':2 'unsorted':6
                                    'search_combo'  '00mid':10 'amalia':4B,5B,13 'casa':2A,8C 'europe':12 'loc':14 'north':11 'portuguesa':3A,9C 'rodrigues':6B 'uma':1A,7C 'unsorted':15
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['female vocalists', 'world', 'fado', 'portugal', 'portuguese']
                                        'tag_date'  1960
                                     'discogstags'  ['folk, world, & country', 'fado']

============================== file details ==============================
                                           'mtime'  1678456336.0843842  (2023-03-10 14:52:16)
                             'size'  2647688