======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '150'
                                          'artist'  'Little Anthony & The Imperials'
                                     'text_people'  'Gary Shelton'
                                         'release'  'The Best of Little Anthony & the Imperials [Rhino]'
                                           'title'  'A Prayer And A Juke Box'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'northern soul', 'doo wop', 'soul', 'oldies']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-doowop'
                                             'bpm'  '141.118'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-463 POS 81'
'COMM:ID3v1 Comment:XXX'                            '59-463 POS 81'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x009\x006\x00+\x002\x009\x006\x008\x00+\x005\x007\x00B\x007\x00+\x008\x000\x00B\x00B\x00+\x00A\x00B\x00C\x002\x00+\x00D\x009\x000\x00B\x00+\x001\x000\x009\x003\x002\x00+\x001\x003\x005\x004\x005\x00+\x001\x006\x000\x00A\x001\x00+\x001\x008\x006\x00C\x00D\x00+\x001\x00B\x003\x006\x00C\x00+\x001\x00D\x008\x008\x00A\x00+\x002\x000\x009\x00F\x00C\x00+\x002\x002\x00E\x009\x003\x00+\x002\x006\x004\x004\x00C\x00+\x002\x009\x000\x004\x00D\x00+\x002\x00B\x009\x003\x00D\x00+\x002\x00E\x008\x008\x001\x00+\x003\x001\x006\x000\x003\x00\x00\x00')
'PRIV:AverageLevel:\x0e\x0e\x00\x00'                PRIV(owner='AverageLevel', data=b'\x0e\x0e\x00\x00')
'PRIV:PeakValue:7i\x00\x00'                         PRIV(owner='PeakValue', data=b'7i\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')
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'PRIV:WM/WMCollectionGroupID:+\\\x820\x97;ËB\x98Ä@ÄÝû!ü'  PRIV(owner='WM/WMCollectionGroupID', data=b'+\\\x820\x97;\xcbB\x98\xc4@\xc4\xdd\xfb!\xfc')
'PRIV:WM/WMCollectionID:+\\\x820\x97;ËB\x98Ä@ÄÝû!ü'  PRIV(owner='WM/WMCollectionID', data=b'+\\\x820\x97;\xcbB\x98\xc4@\xc4\xdd\xfb!\xfc')
'PRIV:WM/WMContentID:2Óì|\r\x9f\x1fG¢Uà\x16Täb\x1b'  PRIV(owner='WM/WMContentID', data=b'2\xd3\xec|\r\x9f\x1fG\xa2U\xe0\x16T\xe4b\x1b')
'TALB' (Album/Movie/Show title)                     'The Best of Little Anthony & the Imperials [Rhino]'
'TBPM' (BPM (beats per minute))                     '141.118'
'TCOM' (Composer)                                   'Gary Shelton'
'TCON' (Content type, a.k.a. Genre)                 'prerock-doowop'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'A Prayer And A Juke Box'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '150440'
'TPE1' (Lead performer(s)/Soloist(s))               'Little Anthony & The Imperials'
'TPE2' (Band/orchestra/accompaniment)               'Little Anthony & The Imperials'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '7'
'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'                                   ['60s', 'northern soul', 'doo wop', 'soul', 'oldies']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.00 dB'
'TXXX:replaygain_track_peak'                        '0.603231'

========================== row from database ==========================
                                              'id'  1445411
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-463 - Little Anthony & The Imperials - A Prayer And A Juke Box.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  150
                                           'genre'  prerock-doowop
                                        'filesize'  6017004
                                           'mtime'  1621705424
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 463 prerock doowop
                                      'tag_artist'  Little Anthony & The Imperials
                                     'tag_release'  The Best of Little Anthony & the Imperials [Rhino]
                                       'tag_title'  A Prayer And A Juke Box
                                             'bpm'  141.118
                                    'search_title'  'a':1 'and':3 'box':5 'juke':4 'prayer':2
                                   'search_artist'  'anthony':2 'imperials':4 'little':1 'the':3
                                  'search_release'  'anthony':5 'best':2 'imperials':6 'little':4 'of':3 'rhino':7,8 'the':1
                                     'search_rest'  '00oldiepop':5 '1959':6 '463':8 '59':7 'country':4 'doowop':10 'exotica':2 'jazz':1 'oldies':3 'prerock':9
                                    'search_combo'  '00oldiepop':22 '1959':23 '463':25 '59':24 'a':1A 'and':3A 'anthony':7B,14C 'best':11C 'box':5A 'country':21 'doowop':27 'exotica':19 'imperials':9B,15C 'jazz':18 'juke':4A 'little':6B,13C 'of':12C 'oldies':20 'prayer':2A 'prerock':26 'rhino':16C,17C 'the':8B,10C
                                    'tag_tracknum'  7
                                      '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['60s', 'northern soul', 'doo wop', 'soul', 'oldies']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621705424.4921877  (2021-05-22 19:43:44)
                             'size'  6017004