======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '230'
                                          'artist'  'DAAU'
                                     'text_people'  ''
                                         'release'  'Ghost Tracks'
                                           'title'  'Back Up (Remix by Nicolas Uske)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['belgium', 'alternative', 'jazz', 'experimental', 'belgian']"
                                     'discogstags'  ("['electronic', 'jazz', 'rock', 'folk rock', 'modern classical', "
 "'avantgarde', 'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '13'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-newer-experimental or free'
                                             'bpm'  '139.083'
                                             'key'  '7B'
                                        'acoustid'  '21bc9815-71cf-4852-9f9a-7de24e09762d'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Remix By Nicolas Uske'
'COMM:ID3v1 Comment:XXX'                            'Remix By Nicolas Uske'
'COMM:iTunes_CDDB_IDs:eng'                          '13+09F0057039E4373B5086C8F1101F42E7+3902403'
'PRIV:AverageLevel:\t\x1d\x00\x00'                  PRIV(owner='AverageLevel', data=b'\t\x1d\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\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')
'TALB' (Album/Movie/Show title)                     'Ghost Tracks'
'TBPM' (BPM (beats per minute))                     '139.083'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-newer-experimental or free'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004-03-08'
'TIT2' (Title/songname/content description)         'Back Up (Remix by Nicolas Uske)'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'DAAU'
'TPE2' (Band/orchestra/accompaniment)               'DAAU'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/13'
'TSO2'                                              'DAAU'
'TSOP' (Performer sort order)                       'DAAU'
'TXXX:Acoustid Id'                                  '21bc9815-71cf-4852-9f9a-7de24e09762d'
'TXXX:MusicBrainz Album Artist Id'                  '6cb45b22-475e-440b-9231-8ba95d869f36'
'TXXX:MusicBrainz Album Id'                         '67f64748-cb74-44b6-9db5-0613bf773d61'
'TXXX:MusicBrainz Album Release Country'            'BE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '6cb45b22-475e-440b-9231-8ba95d869f36'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic',
 'jazz',
 'rock',
 'folk rock',
 'modern classical',
 'avantgarde',
 'experimental']
'TXXX:lastfmtags'                                   ['belgium', 'alternative', 'jazz', 'experimental', 'belgian']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.384470'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'c0bb4aac-2854-47d3-a966-dd4d61950a00')

========================== row from database ==========================
                                              'id'  1267344
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/DAAU - 2004 - Ghost Tracks/04 - Back Up.mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  230
                                           'genre'  prerock-jb-jazz-newer-experimental or free
                                        'filesize'  6482444
                                           'mtime'  1620528406
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 2004 04 prerock jb jazz newer experimental or free
                                      'tag_artist'  DAAU
                                     'tag_release'  Ghost Tracks
                                       'tag_title'  Back Up (Remix by Nicolas Uske)
                                             'bpm'  139.083
                                    'search_title'  'back':1 'by':5 'nicolas':6 'remix':3,4 'up':2 'uske':7,8
                                   'search_artist'  'daau':1
                                  'search_release'  'ghost':1 'tracks':2
                                     'search_rest'  '2004':5 'country':4 'exotica':2 'experimental':9 'free':11 'jazz':1 'jb':7 'newer':8 'oldies':3 'or':10 'prerock':6
                                    'search_combo'  '2004':16 'back':1A 'by':5A 'country':15 'daau':9B 'exotica':13 'experimental':20 'free':22 'ghost':10C 'jazz':12 'jb':18 'newer':19 'nicolas':6A 'oldies':14 'or':21 'prerock':17 'remix':3A,4A 'tracks':11C 'up':2A 'uske':7A,8A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['belgium', 'alternative', 'jazz', 'experimental', 'belgian']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'jazz', 'rock', 'folk rock', 'modern classical', 'avantgarde', 'experimental']

============================== file details ==============================
                                           'mtime'  1620528406.4863322  (2021-05-09 04:46:46)
                             'size'  6482444