======================== unified (from filesystem) ========================
                                         'bitrate'  '197.189'
                                        'duration'  '201'
                                          'artist'  'Bon Iver'
                                     'text_people'  ''
                                         'release'  'For Emma, Forever Ago'
                                           'title'  'Lump Sum'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
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 "'q-chart-4', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'lo fi', 'folk', 'singer songwriter']"
                                     'discogstags'  "['rock', 'folk, world, & country', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '143.213'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000286 00000301 00000F26'
'COMM:iTunNORM:eng'                                 (' 00000286 00000301 00000F26 00000F6E 00026B0D 000135A8 000069F2 00007D5C '
 '00026B0D 000135BF')
'COMM:iTunPGAP:eng'                                 '1'
'TALB' (Album/Movie/Show title)                     'For Emma, Forever Ago'
'TBPM' (BPM (beats per minute))                     '143.213'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2007-07-08'
'TIT2' (Title/songname/content description)         'Lump Sum'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bon Iver'
'TPUB' (Publisher)                                  '[none]'
'TRCK' (Track number/Position in set)               '2'
'TSOP' (Performer sort order)                       'Bon Iver'
'TXXX:ALBUMARTISTSORT'                              'Bon Iver'
'TXXX:MusicBrainz Album Artist Id'                  '437a0e49-c6ae-42f6-a6c1-84f25ed366bc'
'TXXX:MusicBrainz Album Id'                         'f2d4a53b-0612-48e2-a09c-02489ae27a51'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '437a0e49-c6ae-42f6-a6c1-84f25ed366bc'
'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, world, & country', 'acoustic']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'lo fi', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+8.68 dB'
'TXXX:replaygain_track_peak'                        '0.210776'

========================== row from database ==========================
                                              'id'  1254145
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Bon Iver/For Emma, Forever Ago/02 lump sum_.mp3
                                         'working'  None
                                         'bitrate'  197
                                    'duration_sec'  201
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  5007501
                                           'mtime'  1637950037
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 02 lump sum_ ifs songwriter indie unsorted
                                      'tag_artist'  Bon Iver
                                     'tag_release'  For Emma, Forever Ago
                                       'tag_title'  Lump Sum
                                             'bpm'  143.213
                                    'search_title'  'lump':1 'sum':2
                                   'search_artist'  'bon':1 'iver':2
                                  'search_release'  'ago':5 'emma':2,3 'for':1 'forever':4
                                     'search_rest'  '00singer':1 'eos':3 'ifs':6 'indie':7 'lump':4 'songwriter':2 'sum':5 'unsorted':8
                                    'search_combo'  '00singer':10 'ago':9C 'bon':3B 'emma':6C,7C 'eos':12 'for':5C 'forever':8C 'ifs':15 'indie':16 'iver':4B 'lump':1A,13 'songwriter':11 'sum':2A,14 'unsorted':17
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['indie', 'acoustic', 'lo fi', 'folk', 'singer songwriter']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'folk, world, & country', 'acoustic']

============================== file details ==============================
                                           'mtime'  1637950037.0102625  (2021-11-26 19:07:17)
                             'size'  5007501