======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '201'
                                          'artist'  'Altan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['irish folk', 'celtic', 'irish', 'folk', 'world']"
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '04 --The Road To Durham'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-folk'
                                             'bpm'  '100.257'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '100.257'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-folk'
'TDRC' (Recording time)                             '1995'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Altan'
'TRCK' (Track number/Position in set)               '04 --The Road To Durham'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['irish folk', 'celtic', 'irish', 'folk', 'world']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.09 dB'
'TXXX:replaygain_track_peak'                        '0.664223'

========================== row from database ==========================
                                              'id'  1331139
                                            'path'  /data/Music/Bulk/00poprockelectronic/Altan/02 Horse with a heart/Altan - 04 --The Road To Durham.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  201
                                           'genre'  ifs-songwriter-folk
                                        'filesize'  3230415
                                           'mtime'  1621630109
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 Horse with heart 04 The Road To Durham ifs songwriter folk
                                      'tag_artist'  Altan
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  100.257
                                    'search_title'  None
                                   'search_artist'  'altan':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'durham':8 'folk':11 'heart':4 'horse':2 'ifs':9 'road':6 'songwriter':10 'the':5 'to':7 'with':3
                                    'search_combo'  '00poprockelectronic':2 'altan':1B 'durham':9 'folk':12 'heart':5 'horse':3 'ifs':10 'road':7 'songwriter':11 'the':6 'to':8 'with':4
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-piano-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['irish folk', 'celtic', 'irish', 'folk', 'world']
                                        'tag_date'  1995
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1621630108.7187166  (2021-05-21 22:48:28)
                             'size'  3230415