======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '178'
                                          'artist'  'Ruby Wright'
                                     'text_people'  ''
                                         'release'  'FRATERNITY 787'
                                           'title'  "Let's Light The Christmas Tree"
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['spotify', 'all', '40s', '50s', 'christmas']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '248'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted;set-th-christmas'
                                             'bpm'  '94.680'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'FRATERNITY 787'
'TBPM' (BPM (beats per minute))                     '94.680'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-unsorted', 'set-th-christmas']
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         "Let's Light The Christmas Tree"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ruby Wright'
'TRCK' (Track number/Position in set)               '248'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['spotify', 'all', '40s', '50s', 'christmas']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.513698'

========================== row from database ==========================
                                              'id'  1512907
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-248 - Ruby Wright - Let_s Light The Christmas Tree.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  178
                                           'genre'  prerock-unsorted;set-th-christmas
                                        'filesize'  7137614
                                           'mtime'  1620343038
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 248 Let_s prerock unsorted;set th christmas
                                      'tag_artist'  Ruby Wright
                                     'tag_release'  FRATERNITY 787
                                       'tag_title'  Let's Light The Christmas Tree
                                             'bpm'  94.68
                                    'search_title'  'christmas':6 'let':1 'lets':3 'light':4 's':2 'the':5 'tree':7
                                   'search_artist'  'ruby':1 'wright':2
                                  'search_release'  '787':2 'fraternity':1
                                     'search_rest'  '00oldiepop':5 '1957':6 '248':7 'christmas':16 'country':4 'exotica':2 'jazz':1 'let':8 'oldies':3 'prerock':10 's':9 'set':12,14 'th':15 'unsorted':11,13
                                    'search_combo'  '00oldiepop':16 '1957':17 '248':18 '787':11C 'christmas':6A,27 'country':15 'exotica':13 'fraternity':10C 'jazz':12 'let':1A,19 'lets':3A 'light':4A 'oldies':14 'prerock':21 'ruby':8B 's':2A,20 'set':23,25 'th':26 'the':5A 'tree':7A 'unsorted':22,24 'wright':9B
                                    'tag_tracknum'  248
                                      'num_images'  0
                                             'key'  6A
                                           '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-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['spotify', 'all', '40s', '50s', 'christmas']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343037.6549318  (2021-05-07 01:17:17)
                             'size'  7137614