======================== unified (from filesystem) ========================
                                         'bitrate'  '275.685'
                                        'duration'  '374'
                                          'artist'  'The Dodos'
                                     'text_people'  ''
                                         'release'  'Visiter'
                                           'title'  'Paint the Rust'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'indie folk', 'folk', 'indie pop']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '118.014'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00001470 0000145F 000061FD'
'TALB' (Album/Movie/Show title)                     'Visiter'
'TBPM' (BPM (beats per minute))                     '118.014'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Paint the Rust'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dodos'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'indie folk', 'folk', 'indie pop']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.391338'

========================== row from database ==========================
                                              'id'  1381210
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Dodos - Dodos/The Dodos - Visiter [2008]/08 Paint the Rust.mp3
                                         'working'  None
                                         'bitrate'  275
                                    'duration_sec'  374
                                           'genre'  ifs-songwriter
                                        'filesize'  12917714
                                           'mtime'  1621489531
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [2008] 08 ifs songwriter
                                      'tag_artist'  The Dodos
                                     'tag_release'  Visiter
                                       'tag_title'  Paint the Rust
                                             'bpm'  118.014
                                    'search_title'  'paint':1 'rust':3 'the':2
                                   'search_artist'  'dodos':2 'the':1
                                  'search_release'  'visiter':1
                                     'search_rest'  '00singer':1 '2008':4,5 'eos':3 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':7 '2008':10,11 'dodos':5B 'eos':9 'ifs':12 'paint':1A 'rust':3A 'songwriter':8 'the':2A,4B 'visiter':6C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10A
                                           '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-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'indie folk', 'folk', 'indie pop']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621489530.80175  (2021-05-20 07:45:30)
                             'size'  12917714