======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '221'
                                          'artist'  'Édith Piaf'
                                     'text_people'  ''
                                         'release'  "30e anniversaire: L'Intégrale 1946-1963 (disc 06: La Foule)"
                                           'title'  'Heaven a Mercy (Miséricorde)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '22'
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '133'
                                             'key'  '3B'
                                        'acoustid'  '01637a51-9ad1-469f-9c74-e0ef5ab9c421'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "30e anniversaire: L'Intégrale 1946-1963 (disc 06: La Foule)"
'TBPM' (BPM (beats per minute))                     '133'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDOR' (Original release time)                      '1988'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'Heaven a Mercy (Miséricorde)'
'TKEY' (Initial key)                                '3B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Édith Piaf'
'TPE2' (Band/orchestra/accompaniment)               'Édith Piaf'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'EMI France'
'TRCK' (Track number/Position in set)               '3/22'
'TSO2'                                              'Piaf, Édith'
'TSOP' (Performer sort order)                       'Piaf, Édith'
'TSRC' (ISRC (international standard recording code))  'FRZ115600360'
'TXXX:ASIN'                                         'B0000076J6'
'TXXX:Acoustid Id'                                  '01637a51-9ad1-469f-9c74-e0ef5ab9c421'
'TXXX:Artists'                                      'Édith Piaf'
'TXXX:BARCODE'                                      '724382714026'
'TXXX:CATALOGNUMBER'                                '8271402'
'TXXX:MusicBrainz Album Artist Id'                  '4f8ef4a3-40fa-46b5-8773-97686a8424f4'
'TXXX:MusicBrainz Album Id'                         '9ff52d14-b00e-4b7b-8af5-91cfdccc9a57'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '4f8ef4a3-40fa-46b5-8773-97686a8424f4'
'TXXX:MusicBrainz Release Group Id'                 '7dcf4d5b-571c-3c9c-905d-4b597a5be0a1'
'TXXX:MusicBrainz Release Track Id'                 '9a98bbdc-d9a0-3df8-8afd-203540ee3fb6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']
'TXXX:originalyear'                                 '1988'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'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'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.575072'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ede13323-5c9f-409f-88d2-ece19f2a4ab1')

========================== row from database ==========================
                                              'id'  1213723
                                            'path'  /data/Music/Bulk/00instruments-classical/Edith Piaf/La Foule/03 - Heaven A Mercy.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  221
                                           'genre'  loc-eur-france
                                        'filesize'  3558226
                                           'mtime'  1620533873
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Edith 03 A loc eur france
                                      'tag_artist'  Édith Piaf
                                     'tag_release'  30e anniversaire: L'Intégrale 1946-1963 (disc 06: La Foule)
                                       'tag_title'  Heaven a Mercy (Miséricorde)
                                             'bpm'  133.0
                                    'search_title'  'a':2 'heaven':1 'mercy':3 'misericorde':4,5,6,7
                                   'search_artist'  'edith':1,2 'piaf':3
                                  'search_release'  '06':15,16 '1946':10 '19461963':12 '1963':11 '30e':1 'anniversaire':2,3 'disc':13,14 'foule':18,19 'integrale':5,8 'l':4,7 'la':17 'lintegrale':6,9
                                     'search_rest'  '00instruments':1 'a':4 'classical':2 'edith':3 'eur':6 'france':7 'loc':5
                                    'search_combo'  '00instruments':30 '06':25C,26C '1946':20C '19461963':22C '1963':21C '30e':11C 'a':2A,33 'anniversaire':12C,13C 'classical':31 'disc':23C,24C 'edith':8B,9B,32 'eur':35 'foule':28C,29C 'france':36 'heaven':1A 'integrale':15C,18C 'l':14C,17C 'la':27C 'lintegrale':16C,19C 'loc':34 'mercy':3A 'misericorde':4A,5A,6A,7A 'piaf':10B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533872.553262  (2021-05-09 06:17:52)
                             'size'  3558226