======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '795'
                                          'artist'  'Ivor Cutler'
                                     'text_people'  ''
                                         'release'  'Jelly Mountain - Series 01'
                                           'title'  'Jelly Mountain - S01 - E04'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-LOCALNESS-1', 'Q-UNU-2', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spoken word', 'humour', 'poetry', 'scottish', 'john peel', 'comedy']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'entertaining-eccentric'
                                             'bpm'  '145.371'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Jelly Mountain - Series 01'
'TBPM' (BPM (beats per minute))                     '145.371'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-eccentric'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'Jelly Mountain - S01 - E04'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ivor Cutler'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['spoken word', 'humour', 'poetry', 'scottish', 'john peel', 'comedy']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.68 dB'
'TXXX:replaygain_track_peak'                        '0.817682'

========================== row from database ==========================
                                              'id'  1304434
                                            'path'  /data/Music/Bulk/00spent/Ivor Cutler/Jelly Mountain - S01 - E04.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  795
                                           'genre'  entertaining-eccentric
                                        'filesize'  12735391
                                           'mtime'  1620527247
                                   'redo_metaread'  0
                                        'rest_str'   00spent entertaining eccentric
                                      'tag_artist'  Ivor Cutler
                                     'tag_release'  Jelly Mountain - Series 01
                                       'tag_title'  Jelly Mountain - S01 - E04
                                             'bpm'  145.371
                                    'search_title'  'e04':4 'jelly':1 'mountain':2 's01':3
                                   'search_artist'  'cutler':2 'ivor':1
                                  'search_release'  'jelly':1 'mountain':2 'series':3
                                     'search_rest'  '00spent':1 'eccentric':3 'entertaining':2
                                    'search_combo'  '00spent':10 'cutler':6B 'e04':4A 'eccentric':12 'entertaining':11 'ivor':5B 'jelly':1A,7C 'mountain':2A,8C 's01':3A 'series':9C
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['spoken word', 'humour', 'poetry', 'scottish', 'john peel', 'comedy']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527247.0206943  (2021-05-09 04:27:27)
                             'size'  12735391