======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '1751'
                                          'artist'  'Phyllis King & Ivor Cutler'
                                     'text_people'  ''
                                         'release'  'King Cutler - Series 01'
                                           'title'  'King Cutler - S01 - E01'
                                           '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-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'entertaining-eccentric'
                                             'bpm'  '140.628'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'King Cutler - Series 01'
'TBPM' (BPM (beats per minute))                     '140.628'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-eccentric'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'King Cutler - S01 - E01'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Phyllis King & Ivor Cutler'
'TRCK' (Track number/Position in set)               '1'
'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: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'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.81 dB'
'TXXX:replaygain_track_peak'                        '0.594244'

========================== row from database ==========================
                                              'id'  1300982
                                            'path'  /data/Music/Bulk/00spent/Ivor Cutler/King Cutler - S01 - E01.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  1751
                                           'genre'  entertaining-eccentric
                                        'filesize'  28020137
                                           'mtime'  1620647305
                                   'redo_metaread'  0
                                        'rest_str'   00spent entertaining eccentric
                                      'tag_artist'  Phyllis King & Ivor Cutler
                                     'tag_release'  King Cutler - Series 01
                                       'tag_title'  King Cutler - S01 - E01
                                             'bpm'  140.628
                                    'search_title'  'cutler':2 'e01':4 'king':1 's01':3
                                   'search_artist'  'cutler':4 'ivor':3 'king':2 'phyllis':1
                                  'search_release'  'cutler':2 'king':1 'series':3
                                     'search_rest'  '00spent':1 'eccentric':3 'entertaining':2
                                    'search_combo'  '00spent':12 'cutler':2A,8B,10C 'e01':4A 'eccentric':14 'entertaining':13 'ivor':7B 'king':1A,6B,9C 'phyllis':5B 's01':3A 'series':11C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', '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'  []
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620647305.4767008  (2021-05-10 13:48:25)
                             'size'  28020137