======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '137'
                                          'artist'  'Johnnie & Joe'
                                     'text_people'  ''
                                         'release'  "The Golden Age of American Rock 'n' Roll, Vol. 5"
                                           'title'  'Over The Mountain, Across The Sea'
                                           'quals'  ("['Q-JZFKS-2', '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-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', '50s', 'doo wop', 'vocal', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '074'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '136.920'
                                             'key'  '4B'
                                        '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/WMCollectionGroupID:\x8e¸\r\x99Ù¶ÀC®\x1cù\x829PCs'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x8e\xb8\r\x99\xd9\xb6\xc0C\xae\x1c\xf9\x829PCs')
'PRIV:WM/WMCollectionID:\x8e¸\r\x99Ù¶ÀC®\x1cù\x829PCs'  PRIV(owner='WM/WMCollectionID', data=b'\x8e\xb8\r\x99\xd9\xb6\xc0C\xae\x1c\xf9\x829PCs')
'PRIV:WM/WMContentID:>í]C[»®B¸\x11\x10ö¼à\x03\x0c'  PRIV(owner='WM/WMContentID', data=b'>\xed]C[\xbb\xaeB\xb8\x11\x10\xf6\xbc\xe0\x03\x0c')
'TALB' (Album/Movie/Show title)                     "The Golden Age of American Rock 'n' Roll, Vol. 5"
'TBPM' (BPM (beats per minute))                     '136.920'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Over The Mountain, Across The Sea'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '138000'
'TPE1' (Lead performer(s)/Soloist(s))               'Johnnie & Joe'
'TPUB' (Publisher)                                  'Ace'
'TRCK' (Track number/Position in set)               '074'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', '50s', 'doo wop', 'vocal', '60s']
'TXXX:q-bass'                                       '2'
'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'                        '+1.92 dB'
'TXXX:replaygain_track_peak'                        '0.422487'

========================== row from database ==========================
                                              'id'  1440589
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-074 - Johnnie & Joe - Over The Mountain, Across The Sea.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  137
                                           'genre'  prerock-unsorted
                                        'filesize'  5509589
                                           'mtime'  1620387684
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 074 prerock unsorted
                                      'tag_artist'  Johnnie & Joe
                                     'tag_release'  The Golden Age of American Rock 'n' Roll, Vol. 5
                                       'tag_title'  Over The Mountain, Across The Sea
                                             'bpm'  136.92
                                    'search_title'  'across':5 'mountain':3,4 'over':1 'sea':6 'the':2
                                   'search_artist'  'joe':2 'johnnie':1
                                  'search_release'  '5':13 'age':3 'american':5 'golden':2 'n':7,8 'of':4 'rock':6 'roll':9,10 'the':1 'vol':11,12
                                     'search_rest'  '00oldiepop':5 '1957':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':26 '1957':27 '5':21C 'across':5A 'age':11C 'american':13C 'country':25 'exotica':23 'golden':10C 'jazz':22 'joe':8B 'johnnie':7B 'mountain':3A,4A 'n':15C,16C 'of':12C 'oldies':24 'over':1A 'prerock':28 'rock':14C 'roll':17C,18C 'sea':6A 'the':2A,9C 'unsorted':29 'vol':19C,20C
                                    'tag_tracknum'  74
                                      'num_images'  0
                                             'key'  4B
                                           '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-2', 'q-grit-1']
                                      'lastfmtags'  ['oldies', '50s', 'doo wop', 'vocal', '60s']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387684.345541  (2021-05-07 13:41:24)
                             'size'  5509589