======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '152'
                                          'artist'  'Jimmie F. Rodgers'
                                     'text_people'  'Alex North/Sammy Cahn'
                                         'release'  'The Best of Jimmie Rodgers [Rhino]'
                                           'title'  'The Long Hot Summer'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', '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'  "['country', 'folk', 'blues', 'bluegrass', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '146.000'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-429 POS 77'
'COMM:ID3v1 Comment:XXX'                            '58-429 POS 77'
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'PRIV:WM/WMCollectionGroupID:×ù \x86iê\x99K\x92Nü\x96òνÃ'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xd7\xf9 \x86i\xea\x99K\x92N\xfc\x96\xf2\xce\xbd\xc3')
'PRIV:WM/WMCollectionID:×ù \x86iê\x99K\x92Nü\x96òνÃ'  PRIV(owner='WM/WMCollectionID', data=b'\xd7\xf9 \x86i\xea\x99K\x92N\xfc\x96\xf2\xce\xbd\xc3')
'PRIV:WM/WMContentID:×\x85@Éì]²G¹XÝQôÀ\x13û'        PRIV(owner='WM/WMContentID', data=b'\xd7\x85@\xc9\xec]\xb2G\xb9X\xddQ\xf4\xc0\x13\xfb')
'TALB' (Album/Movie/Show title)                     'The Best of Jimmie Rodgers [Rhino]'
'TBPM' (BPM (beats per minute))                     '146.000'
'TCOM' (Composer)                                   'Alex North/Sammy Cahn'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'The Long Hot Summer'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '152733'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmie Rodgers'
'TPE2' (Band/orchestra/accompaniment)               'Jimmie F. Rodgers'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '4'
'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'                                   ['country', 'folk', 'blues', 'bluegrass', 'classic country']
'TXXX:q-bass'                                       '2'
'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'                        '+1.88 dB'
'TXXX:replaygain_track_peak'                        '0.458559'

========================== row from database ==========================
                                              'id'  1430448
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-429 - Jimmie Rodgers - The Long Hot Summer.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  152
                                           'genre'  prerock-unsorted
                                        'filesize'  6107576
                                           'mtime'  1621698384
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 429 prerock unsorted
                                      'tag_artist'  Jimmie F. Rodgers
                                     'tag_release'  The Best of Jimmie Rodgers [Rhino]
                                       'tag_title'  The Long Hot Summer
                                             'bpm'  146.0
                                    'search_title'  'hot':3 'long':2 'summer':4 'the':1
                                   'search_artist'  'f':2,3 'jimmie':1 'rodgers':4
                                  'search_release'  'best':2 'jimmie':4 'of':3 'rhino':6,7 'rodgers':5 'the':1
                                     'search_rest'  '00oldiepop':5 '1958':6 '429':8 '58':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':20 '1958':21 '429':23 '58':22 'best':10C 'country':19 'exotica':17 'f':6B,7B 'hot':3A 'jazz':16 'jimmie':5B,12C 'long':2A 'of':11C 'oldies':18 'prerock':24 'rhino':14C,15C 'rodgers':8B,13C 'summer':4A 'the':1A,9C 'unsorted':25
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           '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-HAP-3', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['country', 'folk', 'blues', 'bluegrass', 'classic country']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698383.610853  (2021-05-22 17:46:23)
                             'size'  6107576