======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '114'
                                          'artist'  'Frankie Lymon & the Teenagers'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "A B C's Of Love"
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['doo wop', 'oldies', '50s', 'soul', 'rock n roll']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '97.225'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '97.225'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         "A B C's Of Love"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Frankie Lymon & the Teenagers'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['doo wop', 'oldies', '50s', 'soul', 'rock n roll']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'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'                        '+0.84 dB'
'TXXX:replaygain_track_peak'                        '0.457860'

========================== row from database ==========================
                                              'id'  1501764
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/Frankie Lymon & the Teenagers - ABC_s Of Love 20-10-1956.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  114
                                           'genre'  prerock-unsorted
                                        'filesize'  2295602
                                           'mtime'  1620387666
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 ABC_s 20 10 1956 prerock unsorted
                                      'tag_artist'  Frankie Lymon & the Teenagers
                                     'tag_release'  None
                                       'tag_title'  A B C's Of Love
                                             'bpm'  97.225
                                    'search_title'  'a':1 'b':2 'c':3 'cs':5 'love':7 'of':6 's':4
                                   'search_artist'  'frankie':1 'lymon':2 'teenagers':4 'the':3
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1956':6 '20':9 'abc':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 's':8 'unsorted':11
                                    'search_combo'  '00oldiepop':16 '1956':17 '20':20 'a':1A 'abc':18 'b':2A 'c':3A 'country':15 'cs':5A 'exotica':13 'frankie':8B 'jazz':12 'love':7A 'lymon':9B 'of':6A 'oldies':14 'prerock':21 's':4A,19 'teenagers':11B 'the':10B 'unsorted':22
                                    'tag_tracknum'  None
                                      '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-2', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['doo wop', 'oldies', '50s', 'soul', 'rock n roll']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387666.0262809  (2021-05-07 13:41:06)
                             'size'  2295602