======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '148'
                                          'artist'  'Tommy Sands'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "The Worryin' Kind"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'celtic', 'oldies', 'pop', 'rockabilly']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'rock-pop-early'
                                             'bpm'  '123.708'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-392 POS 69'
'COMM:ID3v1 Comment:XXX'                            '59-392 POS 69'
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'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')
'TBPM' (BPM (beats per minute))                     '123.708'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early'
'TDRC' (Recording time)                             '1959'
'TENC' (Encoded by)                                 'Free Mp3 Wma Converter'
'TIT2' (Title/songname/content description)         "The Worryin' Kind"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tommy Sands'
'TRCK' (Track number/Position in set)               '1'
'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'                                   ['rock and roll', 'celtic', 'oldies', 'pop', 'rockabilly']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'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'                        '-0.46 dB'
'TXXX:replaygain_track_peak'                        '0.353134'

========================== row from database ==========================
                                              'id'  1507705
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-392 - Tommy Sands - The Worryin_ Kind.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  148
                                           'genre'  rock-pop-early
                                        'filesize'  5944573
                                           'mtime'  1620736496
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 392 Worryin_ rock pop early
                                      'tag_artist'  Tommy Sands
                                     'tag_release'  None
                                       'tag_title'  The Worryin' Kind
                                             'bpm'  123.708
                                    'search_title'  'kind':4 'the':1 'worryin':2,3
                                   'search_artist'  'sands':2 'tommy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1959':6 '392':8 '59':7 'country':4 'early':12 'exotica':2 'jazz':1 'oldies':3 'pop':11 'rock':10 'worryin':9
                                    'search_combo'  '00oldiepop':11 '1959':12 '392':14 '59':13 'country':10 'early':18 'exotica':8 'jazz':7 'kind':4A 'oldies':9 'pop':17 'rock':16 'sands':6B 'the':1A 'tommy':5B 'worryin':2A,3A,15
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  12B
                                           '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-2', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'celtic', 'oldies', 'pop', 'rockabilly']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736495.7869728  (2021-05-11 14:34:55)
                             'size'  5944573