======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '144'
                                          'artist'  'The Ames Brothers'
                                     'text_people'  ''
                                         'release'  'The Best of the Ames Brothers'
                                           'title'  'Tammy'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'ames brothers', 'jazz', '50s', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '052'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-americana'
                                             'bpm'  '134.556'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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'PRIV:WM/WMCollectionID:\x96¡Û÷ëaGL\x96éJÀ\x85yP×'  PRIV(owner='WM/WMCollectionID', data=b'\x96\xa1\xdb\xf7\xebaGL\x96\xe9J\xc0\x85yP\xd7')
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'TALB' (Album/Movie/Show title)                     'The Best of the Ames Brothers'
'TBPM' (BPM (beats per minute))                     '134.556'
'TCON' (Content type, a.k.a. Genre)                 'prerock-americana'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Tammy'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '145026'
'TPE1' (Lead performer(s)/Soloist(s))               'The Ames Brothers'
'TPUB' (Publisher)                                  'Pair'
'TRCK' (Track number/Position in set)               '052'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'ames brothers', 'jazz', '50s', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '-0.27 dB'
'TXXX:replaygain_track_peak'                        '0.558282'

========================== row from database ==========================
                                              'id'  1446347
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-052 - The Ames Brothers - Tammy.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  144
                                           'genre'  prerock-americana
                                        'filesize'  5801561
                                           'mtime'  1620561391
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 052 prerock americana
                                      'tag_artist'  The Ames Brothers
                                     'tag_release'  The Best of the Ames Brothers
                                       'tag_title'  Tammy
                                             'bpm'  134.556
                                    'search_title'  'tammy':1
                                   'search_artist'  'ames':2 'brothers':3 'the':1
                                  'search_release'  'ames':4 'best':2 'brothers':5 'of':3 'the':1
                                     'search_rest'  '00oldiepop':5 '1957':6 'americana':8 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7
                                    'search_combo'  '00oldiepop':14 '1957':15 'americana':17 'ames':3B,8C 'best':6C 'brothers':4B,9C 'country':13 'exotica':11 'jazz':10 'of':7C 'oldies':12 'prerock':16 'tammy':1A 'the':2B,5C
                                    'tag_tracknum'  52
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', '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-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['oldies', 'ames brothers', 'jazz', '50s', 'pop']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620561391.4931657  (2021-05-09 13:56:31)
                             'size'  5801561