======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '182'
                                          'artist'  'Édith Piaf'
                                     'text_people'  ''
                                         'release'  'Non, je ne regrette rien'
                                           'title'  'Boulevard du crime'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
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 "'q-chart-3', 'q-drums-2', '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'  '4'
                                      'tracktotal'  '23'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '151'
                                             'key'  '7A'
                                        'acoustid'  '5ce12f91-f145-4bbd-9537-2599d6a4e7de'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Non, je ne regrette rien'
'TBPM' (BPM (beats per minute))                     '151'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Boulevard du crime'
'TKEY' (Initial key)                                '7A'
'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)               '4/23'
'TSO2'                                              'Piaf, Édith'
'TSOP' (Performer sort order)                       'Piaf, Édith'
'TSRC' (ISRC (international standard recording code))  'FRZ116000310'
'TXXX:ASIN'                                         'B0000076J8'
'TXXX:Acoustid Id'                                  '5ce12f91-f145-4bbd-9537-2599d6a4e7de'
'TXXX:Artists'                                      'Édith Piaf'
'TXXX:BARCODE'                                      '724382714224'
'TXXX:CATALOGNUMBER'                                '8271422'
'TXXX:MusicBrainz Album Artist Id'                  '4f8ef4a3-40fa-46b5-8773-97686a8424f4'
'TXXX:MusicBrainz Album Id'                         'e5ef6855-8b26-4e58-b416-8b4a1a1355fa'
'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'                 '313de6b4-75eb-3b33-b37f-31652444fb74'
'TXXX:MusicBrainz Release Track Id'                 '3a630095-914f-3cf3-9cfb-4ddb9ca2c284'
'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'                                 '1993'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'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'                        '+2.43 dB'
'TXXX:replaygain_track_peak'                        '0.687042'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'2b4885a5-640d-4fd8-9a0c-a29d82a69ff3')

========================== row from database ==========================
                                              'id'  1213710
                                            'path'  /data/Music/Bulk/00instruments-classical/Edith Piaf/Non Je Ne Regrette Rien/04 - Boulevard du Crime.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  182
                                           'genre'  loc-eur-france
                                        'filesize'  2942540
                                           'mtime'  1620534063
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Edith Je Ne Regrette Rien 04 Crime loc eur france
                                      'tag_artist'  Édith Piaf
                                     'tag_release'  Non, je ne regrette rien
                                       'tag_title'  Boulevard du crime
                                             'bpm'  151.0
                                    'search_title'  'boulevard':1 'crime':3 'du':2
                                   'search_artist'  'edith':1,2 'piaf':3
                                  'search_release'  'je':3 'ne':4 'non':1,2 'regrette':5 'rien':6
                                     'search_rest'  '00instruments':1 'classical':2 'crime':8 'edith':3 'eur':10 'france':11 'je':4 'loc':9 'ne':5 'regrette':6 'rien':7
                                    'search_combo'  '00instruments':13 'boulevard':1A 'classical':14 'crime':3A,20 'du':2A 'edith':4B,5B,15 'eur':22 'france':23 'je':9C,16 'loc':21 'ne':10C,17 'non':7C,8C 'piaf':6B 'regrette':11C,18 'rien':12C,19
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7A
                                           '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-2', 'q-syn-1', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620534063.2832134  (2021-05-09 06:21:03)
                             'size'  2942540