======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '133'
                                          'artist'  'The Four Lads'
                                     'text_people'  ''
                                         'release'  'Moments to Remember: Very Best of the Four Lads'
                                           'title'  'The Bus Stop Song (A Paper Of Pins)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['vocal', 'pop', '50s', 'oldies', 'canadian']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '129'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '133.668'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Moments to Remember: Very Best of the Four Lads'
'TBPM' (BPM (beats per minute))                     '133.668'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         'The Bus Stop Song (A Paper Of Pins)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Four Lads'
'TPUB' (Publisher)                                  'Taragon'
'TRCK' (Track number/Position in set)               '129'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['vocal', 'pop', '50s', 'oldies', 'canadian']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.04 dB'
'TXXX:replaygain_track_peak'                        '0.421835'

========================== row from database ==========================
                                              'id'  1454588
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-129 - The Four Lads - The Bus Stop Song (A Paper Of Pins).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  133
                                           'genre'  prerock-vocal
                                        'filesize'  5336960
                                           'mtime'  1621853346
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 129 prerock vocal
                                      'tag_artist'  The Four Lads
                                     'tag_release'  Moments to Remember: Very Best of the Four Lads
                                       'tag_title'  The Bus Stop Song (A Paper Of Pins)
                                             'bpm'  133.668
                                    'search_title'  'a':5,6 'bus':2 'of':8 'paper':7 'pins':9,10 'song':4 'stop':3 'the':1
                                   'search_artist'  'four':2 'lads':3 'the':1
                                  'search_release'  'best':6 'four':9 'lads':10 'moments':1 'of':7 'remember':3,4 'the':8 'to':2 'very':5
                                     'search_rest'  '00oldiepop':5 '129':7 '1956':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':28 '129':30 '1956':29 'a':5A,6A 'best':19C 'bus':2A 'country':27 'exotica':25 'four':12B,22C 'jazz':24 'lads':13B,23C 'moments':14C 'of':8A,20C 'oldies':26 'paper':7A 'pins':9A,10A 'prerock':31 'remember':16C,17C 'song':4A 'stop':3A 'the':1A,11B,21C 'to':15C 'very':18C 'vocal':32
                                    'tag_tracknum'  129
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['vocal', 'pop', '50s', 'oldies', 'canadian']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853345.6266859  (2021-05-24 12:49:05)
                             'size'  5336960