======================== unified (from filesystem) ========================
                                         'bitrate'  '189.982'
                                        'duration'  '125'
                                          'artist'  'Micah P. Hinson And The Opera Circuit'
                                     'text_people'  ''
                                         'release'  'Micah P. Hinson And The Opera Circuit'
                                           'title'  "Diggin' A Grave"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-OLDST-3', 'Q-JZFKS-1', "
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                                      'lastfmtags'  "['singer-songwriter', 'folk', 'alt-country', 'indie', 'americana']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-americana'
                                             'bpm'  '111.763'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'COMM:iTunNORM:eng'                                 (' 00000A8A 00000A68 000020F0 0000273F 00015B04 00015B04 00007F4A 00007CD3 '
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'TALB' (Album/Movie/Show title)                     'Micah P. Hinson And The Opera Circuit'
'TBPM' (BPM (beats per minute))                     '111.763'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-americana'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'LAME 3.90.3 Modified'
'TIT2' (Title/songname/content description)         "Diggin' A Grave"
'TKEY' (Initial key)                                '9A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'Micah P. Hinson And The Opera Circuit'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['singer-songwriter', 'folk', 'alt-country', 'indie', 'americana']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.76 dB'
'TXXX:replaygain_track_peak'                        '0.443263'

========================== row from database ==========================
                                              'id'  1502633
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Micah P. Hinson And The Opera Circuit - Micah P Hinson/And The Opera Circuit/02 diggin_ a grave.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  125
                                           'genre'  ifs-songwriter-americana
                                        'filesize'  2984430
                                           'mtime'  1622655616
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 02 diggin_ grave ifs songwriter americana
                                      'tag_artist'  Micah P. Hinson And The Opera Circuit
                                     'tag_release'  Micah P. Hinson And The Opera Circuit
                                       'tag_title'  Diggin' A Grave
                                             'bpm'  111.763
                                    'search_title'  'a':3 'diggin':1,2 'grave':4
                                   'search_artist'  'and':5 'circuit':8 'hinson':4 'micah':1 'opera':7 'p':2,3 'the':6
                                  'search_release'  'and':5 'circuit':8 'hinson':4 'micah':1 'opera':7 'p':2,3 'the':6
                                     'search_rest'  '00singer':1 'americana':7 'diggin':4 'eos':3 'grave':5 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':21 'a':3A 'americana':27 'and':9B,17C 'circuit':12B,20C 'diggin':1A,2A,24 'eos':23 'grave':4A,25 'hinson':8B,16C 'ifs':26 'micah':5B,13C 'opera':11B,19C 'p':6B,7B,14C,15C 'songwriter':22 'the':10B,18C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['singer-songwriter', 'folk', 'alt-country', 'indie', 'americana']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622655616.2776766  (2021-06-02 19:40:16)
                             'size'  2984430