======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '140'
                                          'artist'  'Four Tunes'
                                     'text_people'  ''
                                         'release'  'The Doo Wop Box II, Vol. 1'
                                           'title'  'Marie'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['doo wop', 'oldies']"
                                     'discogstags'  "['funk / soul', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '145.163'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '54-083 POS 13'
'COMM:ID3v1 Comment:XXX'                            '54-083 POS 13'
'TALB' (Album/Movie/Show title)                     'The Doo Wop Box II, Vol. 1'
'TBPM' (BPM (beats per minute))                     '145.163'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         'Marie'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Four Tunes'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['funk / soul', 'soul']
'TXXX:lastfmtags'                                   ['doo wop', 'oldies']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+0.20 dB'
'TXXX:replaygain_track_peak'                        '0.622111'

========================== row from database ==========================
                                              'id'  1452591
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-083 - Four Tunes - Marie.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  140
                                           'genre'  prerock-unsorted
                                        'filesize'  5606521
                                           'mtime'  1620387414
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1954 54 083 prerock unsorted
                                      'tag_artist'  Four Tunes
                                     'tag_release'  The Doo Wop Box II, Vol. 1
                                       'tag_title'  Marie
                                             'bpm'  145.163
                                    'search_title'  'marie':1
                                   'search_artist'  'four':1 'tunes':2
                                  'search_release'  '1':9 'box':4 'doo':2 'ii':5,6 'the':1 'vol':7,8 'wop':3
                                     'search_rest'  '00oldiepop':5 '1954':6 '54':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'unsorted':9
                                    'search_combo'  '00oldiepop':17 '1':12C '1954':18 '54':19 'box':7C 'country':16 'doo':5C 'exotica':14 'four':2B 'ii':8C,9C 'jazz':13 'marie':1A 'oldies':15 'prerock':20 'the':4C 'tunes':3B 'unsorted':21 'vol':10C,11C 'wop':6C
                                    'tag_tracknum'  7
                                      '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-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['doo wop', 'oldies']
                                        'tag_date'  1954
                                     'discogstags'  ['funk / soul', 'soul']

============================== file details ==============================
                                           'mtime'  1620387414.1969914  (2021-05-07 13:36:54)
                             'size'  5606521