======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '145'
                                          'artist'  'Sandy Nelson'
                                     'text_people'  'A. Egnoian/Sandy Nelson'
                                         'release'  "The Golden Age of American Rock 'n' Roll, Vol. 2"
                                           'title'  'Teen Beat'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'instrumental', '60s', 'oldies', 'rock n roll']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '27'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-doowop'
                                             'bpm'  '95.890'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-039 POS 4'
'COMM:ID3v1 Comment:XXX'                            '59-039 POS 4'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x00E\x00+\x00B\x006\x00+\x003\x000\x00D\x006\x00+\x005\x00C\x003\x00C\x00+\x008\x00C\x00C\x005\x00+\x00B\x005\x002\x002\x00+\x00E\x001\x00D\x002\x00+\x001\x000\x00E\x007\x00D\x00+\x001\x003\x007\x000\x001\x00+\x001\x005\x003\x00F\x008\x00+\x001\x008\x005\x00E\x00C\x00+\x001\x00B\x000\x00F\x000\x00+\x001\x00E\x003\x007\x007\x00+\x002\x000\x00D\x001\x001\x00+\x002\x003\x004\x008\x008\x00+\x002\x006\x005\x00C\x00A\x00+\x002\x008\x008\x00F\x002\x00+\x002\x00B\x002\x006\x001\x00+\x002\x00E\x001\x00A\x00A\x00+\x003\x000\x00B\x00F\x006\x00+\x003\x003\x009\x004\x003\x00+\x003\x006\x00F\x000\x001\x00+\x003\x009\x00A\x003\x007\x00+\x003\x00C\x006\x007\x002\x00+\x003\x00F\x001\x009\x009\x00+\x004\x001\x005\x00A\x000\x00+\x004\x004\x005\x00D\x004\x00+\x004\x006\x00F\x00C\x000\x00+\x004\x009\x00A\x007\x00A\x00+\x004\x00C\x002\x00C\x00A\x00+\x004\x00F\x003\x000\x00D\x00+\x005\x001\x00C\x00B\x00D\x00\x00\x00')
'PRIV:AverageLevel:s\x0e\x00\x00'                   PRIV(owner='AverageLevel', data=b's\x0e\x00\x00')
'PRIV:PeakValue:Îq\x00\x00'                         PRIV(owner='PeakValue', data=b'\xceq\x00\x00')
'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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x003\x001\x000\x008\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x004\x003\x004\x009\x005\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x003\x001\x000\x008\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x004\x003\x004\x009\x005\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:.ã\x81ÚÔñ¥L©\x86_ð®4$#'  PRIV(owner='WM/WMCollectionGroupID', data=b'.\xe3\x81\xda\xd4\xf1\xa5L\xa9\x86_\xf0\xae4$#')
'PRIV:WM/WMCollectionID:.ã\x81ÚÔñ¥L©\x86_ð®4$#'     PRIV(owner='WM/WMCollectionID', data=b'.\xe3\x81\xda\xd4\xf1\xa5L\xa9\x86_\xf0\xae4$#')
'PRIV:WM/WMContentID:^\x08¡@\x1b\x00"C\x9dj\x1eÜ14J\x1c'  PRIV(owner='WM/WMContentID', data=b'^\x08\xa1@\x1b\x00"C\x9dj\x1e\xdc14J\x1c')
'TALB' (Album/Movie/Show title)                     "The Golden Age of American Rock 'n' Roll, Vol. 2"
'TBPM' (BPM (beats per minute))                     '95.890'
'TCOM' (Composer)                                   'A. Egnoian/Sandy Nelson'
'TCON' (Content type, a.k.a. Genre)                 'prerock-doowop'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Teen Beat'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '145840'
'TPE1' (Lead performer(s)/Soloist(s))               'Sandy Nelson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Ace'
'TRCK' (Track number/Position in set)               '27'
'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', 'instrumental', '60s', 'oldies', 'rock n roll']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.746430'

========================== row from database ==========================
                                              'id'  1442618
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-039 - Sandy Nelson - Teen Beat.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  145
                                           'genre'  prerock-doowop
                                        'filesize'  5836653
                                           'mtime'  1621705422
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 039 prerock doowop
                                      'tag_artist'  Sandy Nelson
                                     'tag_release'  The Golden Age of American Rock 'n' Roll, Vol. 2
                                       'tag_title'  Teen Beat
                                             'bpm'  95.89
                                    'search_title'  'beat':2 'teen':1
                                   'search_artist'  'nelson':2 'sandy':1
                                  'search_release'  '2':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 '1959':6 '59':7 'country':4 'doowop':9 'exotica':2 'jazz':1 'oldies':3 'prerock':8
                                    'search_combo'  '00oldiepop':22 '1959':23 '2':17C '59':24 'age':7C 'american':9C 'beat':2A 'country':21 'doowop':26 'exotica':19 'golden':6C 'jazz':18 'n':11C,12C 'nelson':4B 'of':8C 'oldies':20 'prerock':25 'rock':10C 'roll':13C,14C 'sandy':3B 'teen':1A 'the':5C 'vol':15C,16C
                                    'tag_tracknum'  27
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['rock and roll', 'instrumental', '60s', 'oldies', 'rock n roll']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705422.0587406  (2021-05-22 19:43:42)
                             'size'  5836653