======================== unified (from filesystem) ========================
                                         'bitrate'  '214.944'
                                        'duration'  '368'
                                          'artist'  'Brendan Perry'
                                     'text_people'  ''
                                         'release'  'Ark'
                                           'title'  'Babylon'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['new age', 'singer songwriter', 'gothic', 'ethereal', 'ambient']"
                                     'discogstags'  "['electronic', 'folk, world, & country', 'folk', 'ethereal', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '137.106'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Ark'
'TBPM' (BPM (beats per minute))                     '137.106'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Babylon'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Brendan Perry'
'TRCK' (Track number/Position in set)               '1'
'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'                                  ['electronic', 'folk, world, & country', 'folk', 'ethereal', 'ambient']
'TXXX:lastfmtags'                                   ['new age', 'singer songwriter', 'gothic', 'ethereal', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.38 dB'
'TXXX:replaygain_track_peak'                        '0.460303'

========================== row from database ==========================
                                              'id'  1362382
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Brendan Perry/01. Babylon.mp3
                                         'working'  None
                                         'bitrate'  214
                                    'duration_sec'  368
                                           'genre'  ifs-songwriter
                                        'filesize'  9895478
                                           'mtime'  1620645093
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 01. ifs songwriter
                                      'tag_artist'  Brendan Perry
                                     'tag_release'  Ark
                                       'tag_title'  Babylon
                                             'bpm'  137.106
                                    'search_title'  'babylon':1
                                   'search_artist'  'brendan':1 'perry':2
                                  'search_release'  'ark':1
                                     'search_rest'  '00singer':1 '01':4,5 'eos':3 'ifs':6 'songwriter':2
                                    'search_combo'  '00singer':5 '01':8,9 'ark':4C 'babylon':1A 'brendan':2B 'eos':7 'ifs':10 'perry':3B 'songwriter':6
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1B
                                           '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-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['new age', 'singer songwriter', 'gothic', 'ethereal', 'ambient']
                                        'tag_date'  2010
                                     'discogstags'  ['electronic', 'folk, world, & country', 'folk', 'ethereal', 'ambient']

============================== file details ==============================
                                           'mtime'  1620645092.9974787  (2021-05-10 13:11:32)
                             'size'  9895478