======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '132'
                                          'artist'  'Steve & Eydie'
                                     'text_people'  ''
                                         'release'  'The Best of Steve & Eydie'
                                           'title'  'Party Doll'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-2', '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-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['lounge', 'fhnotbad', 'female vocalists', 'oldies', 'easy listening']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '30'
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '91'
                                             'key'  '6B'
                                        'acoustid'  'da9f47fa-3a85-42b6-a976-6f016a66ac84'
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'F\x00+\x009\x006\x00+\x002\x007\x007\x00E\x00+\x005\x000\x005\x00A\x00+\x007\x00F\x007\x008\x00+\x00A\x00E\x009\x007\x00+\x00C\x00E\x00D\x00B\x00+\x001\x000\x000\x000\x009\x00+\x001\x002\x009\x000\x00D\x00+\x001\x005\x007\x005\x004\x00+\x001\x008\x002\x00F\x004\x00+\x001\x00A\x00F\x004\x000\x00+\x001\x00D\x00B\x00F\x00C\x00+\x002\x000\x002\x00B\x00A\x00+\x002\x003\x004\x00B\x00F\x00+\x002\x005\x00B\x00D\x004\x00+\x002\x008\x006\x002\x007\x00\x00\x00')
'PRIV:AverageLevel:\n\x11\x00\x00'                  PRIV(owner='AverageLevel', data=b'\n\x11\x00\x00')
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\x7f\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\x001\x003\x000\x001\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x002\x006\x006\x003\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x005\x002\x001\x009\x009\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x001\x003\x000\x001\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x002\x006\x006\x003\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x005\x002\x001\x009\x009\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ÀLL§k\x14\x15K\x85`F\x9dpTh\x15'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xc0LL\xa7k\x14\x15K\x85`F\x9dpTh\x15')
'PRIV:WM/WMCollectionID:ÀLL§k\x14\x15K\x85`F\x9dpTh\x15'  PRIV(owner='WM/WMCollectionID', data=b'\xc0LL\xa7k\x14\x15K\x85`F\x9dpTh\x15')
'PRIV:WM/WMContentID:4»iD\x0bd-E\x9e*Òô}Æí\x8e'     PRIV(owner='WM/WMContentID', data=b'4\xbbiD\x0bd-E\x9e*\xd2\xf4}\xc6\xed\x8e')
'TALB' (Album/Movie/Show title)                     'The Best of Steve & Eydie'
'TBPM' (BPM (beats per minute))                     '91'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Party Doll'
'TKEY' (Initial key)                                '6B'
'TLEN' (Length)                                     '132800'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Steve Lawrence'
'TPE2' (Band/orchestra/accompaniment)               'Steve & Eydie'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Taragon'
'TRCK' (Track number/Position in set)               '2/30'
'TSO2'                                              'Steve & Eydie'
'TSOP' (Performer sort order)                       'Lawrence, Steve'
'TXXX:Acoustid Id'                                  'da9f47fa-3a85-42b6-a976-6f016a66ac84'
'TXXX:Artists'                                      'Steve Lawrence'
'TXXX:MusicBrainz Album Artist Id'                  'd138bc4c-0f52-4801-a45b-69e59649ca82'
'TXXX:MusicBrainz Album Id'                         '67ce15d8-7971-4f54-8b3b-1d638dbb128c'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '38931c3d-5e87-461b-8982-84428d8a5a5d'
'TXXX:MusicBrainz Release Group Id'                 'c96abf45-e3e8-31f8-9fe9-5be70d1f8734'
'TXXX:MusicBrainz Release Track Id'                 'a4f61b09-aaa4-31ab-b1ef-04fa5d49066e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['lounge', 'fhnotbad', 'female vocalists', 'oldies', 'easy listening']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+1.77 dB'
'TXXX:replaygain_track_peak'                        '0.499051'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd7a4d5a4-da2e-4334-983c-aa5e0aaad3d2')

========================== row from database ==========================
                                              'id'  1453946
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-058 - Steve Lawrence - Party Doll.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  132
                                           'genre'  prerock-swing
                                        'filesize'  5313952
                                           'mtime'  1620562633
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 058 Lawrence prerock swing
                                      'tag_artist'  Steve & Eydie
                                     'tag_release'  The Best of Steve & Eydie
                                       'tag_title'  Party Doll
                                             'bpm'  91.0
                                    'search_title'  'doll':2 'party':1
                                   'search_artist'  'eydie':2 'steve':1
                                  'search_release'  'best':2 'eydie':5 'of':3 'steve':4 'the':1
                                     'search_rest'  '00oldiepop':5 '1957':6 'country':4 'exotica':2 'jazz':1 'lawrence':7 'oldies':3 'prerock':8 'swing':9
                                    'search_combo'  '00oldiepop':14 '1957':15 'best':6C 'country':13 'doll':2A 'exotica':11 'eydie':4B,9C 'jazz':10 'lawrence':16 'of':7C 'oldies':12 'party':1A 'prerock':17 'steve':3B,8C 'swing':18 'the':5C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  6B
                                           '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['lounge', 'fhnotbad', 'female vocalists', 'oldies', 'easy listening']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562632.8157914  (2021-05-09 14:17:12)
                             'size'  5313952