======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '128'
                                          'artist'  'The Magnetic Fields'
                                     'text_people'  'Stephin Merritt'
                                         'release'  '69 Love Songs, Volume 3'
                                           'title'  'Meaningless'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '23'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '140.3'
                                             'key'  '1B'
                                        'acoustid'  'bd95b398-09a1-4549-ba26-33d2d4b47f8d'
rest: ''

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

'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 \x004\x002\x008\x003\x005\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x004\x003\x001\x002\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x000\x002\x007\x009\x003\x004\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x002\x008\x003\x005\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x004\x003\x001\x002\x001\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x000\x002\x007\x009\x003\x004\x00\x00\x00')
"PRIV:WM/WMCollectionGroupID:\x94\xadï;±i\x84G¥ÿ\x9e\x12\x976z'"  PRIV(owner='WM/WMCollectionGroupID', data=b"\x94\xad\xef;\xb1i\x84G\xa5\xff\x9e\x12\x976z'")
"PRIV:WM/WMCollectionID:\x94\xadï;±i\x84G¥ÿ\x9e\x12\x976z'"  PRIV(owner='WM/WMCollectionID', data=b"\x94\xad\xef;\xb1i\x84G\xa5\xff\x9e\x12\x976z'")
'PRIV:WM/WMContentID:\x16¾\x97\x82£~úD»sIu$çóc'     PRIV(owner='WM/WMContentID', data=b'\x16\xbe\x97\x82\xa3~\xfaD\xbbsIu$\xe7\xf3c')
'TALB' (Album/Movie/Show title)                     '69 Love Songs, Volume 3'
'TBPM' (BPM (beats per minute))                     '140.3'
'TCOM' (Composer)                                   'Stephin Merritt'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-09-07'
'TIT2' (Title/songname/content description)         'Meaningless'
'TKEY' (Initial key)                                '1B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Magnetic Fields'
'TPE2' (Band/orchestra/accompaniment)               'The Magnetic Fields'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Merge Records'
'TRCK' (Track number/Position in set)               '12/23'
'TSO2'                                              'Magnetic Fields, The'
'TSOP' (Performer sort order)                       'Magnetic Fields, The'
'TXXX:ASIN'                                         'B00000JY76'
'TXXX:Acoustid Id'                                  'bd95b398-09a1-4549-ba26-33d2d4b47f8d'
'TXXX:BARCODE'                                      '036172946822'
'TXXX:CATALOGNUMBER'                                'MRG 168'
'TXXX:MusicBrainz Album Artist Id'                  '3ff72a59-f39d-411d-9f93-2d4a86413013'
'TXXX:MusicBrainz Album Id'                         'b8131291-e664-42ad-b0d4-8c1a265d092b'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '3ff72a59-f39d-411d-9f93-2d4a86413013'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.24 dB'
'TXXX:replaygain_track_peak'                        '0.370364'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'643409a1-9403-4966-b033-8955b2029b71')

========================== row from database ==========================
                                              'id'  730081
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Magnetic Fields - 2000 - 69 Love Songs (Circus Records) [192k]/312 - meaningless.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  128
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  3077350
                                           'mtime'  1636403023
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2000 (Circus Records) [192k] 312 meaningless ifs songwriter indie unsorted
                                      'tag_artist'  The Magnetic Fields
                                     'tag_release'  69 Love Songs, Volume 3
                                       'tag_title'  Meaningless
                                             'bpm'  140.3
                                    'search_title'  'meaningless':1
                                   'search_artist'  'fields':3 'magnetic':2 'the':1
                                  'search_release'  '3':6 '69':1 'love':2 'songs':3,4 'volume':5
                                     'search_rest'  '192k':6,7 '2000':1 '312':8 'circus':2,3 'ifs':10 'indie':12 'meaningless':9 'records':4,5 'songwriter':11 'unsorted':13
                                    'search_combo'  '192k':16,17 '2000':11 '3':10C '312':18 '69':5C 'circus':12,13 'fields':4B 'ifs':20 'indie':22 'love':6C 'magnetic':3B 'meaningless':1A,19 'records':14,15 'songs':7C,8C 'songwriter':21 'the':2B 'unsorted':23 'volume':9C
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636403022.7282088  (2021-11-08 21:23:42)
                             'size'  3077350