======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '198'
                                          'artist'  'Édith Piaf'
                                     'text_people'  ''
                                         'release'  "Hymne à l'amour"
                                           'title'  'Simply a Waltz'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-1', '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'  '7'
                                      'tracktotal'  '15'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '112'
                                             'key'  '12B'
                                        'acoustid'  '155918d3-b556-41fe-b803-d31d036453a7'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Hymne à l'amour"
'TBPM' (BPM (beats per minute))                     '112'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003-07-28'
'TIT2' (Title/songname/content description)         'Simply a Waltz'
'TKEY' (Initial key)                                '12B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Édith Piaf'
'TPE2' (Band/orchestra/accompaniment)               'Édith Piaf'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Goldies'
'TRCK' (Track number/Position in set)               '7/15'
'TSO2'                                              'Piaf, Édith'
'TSOP' (Performer sort order)                       'Piaf, Édith'
'TSRC' (ISRC (international standard recording code))  'USKO10410034'
'TXXX:ASIN'                                         'B0000AISJ3'
'TXXX:Acoustid Id'                                  '155918d3-b556-41fe-b803-d31d036453a7'
'TXXX:Artists'                                      'Édith Piaf'
'TXXX:BARCODE'                                      '8712177044313'
'TXXX:MusicBrainz Album Artist Id'                  '4f8ef4a3-40fa-46b5-8773-97686a8424f4'
'TXXX:MusicBrainz Album Id'                         '370a9ffd-9811-46f1-8974-a3ed0c7d24d7'
'TXXX:MusicBrainz Album Release Country'            'DE'
'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'                 '60d1e15a-470e-31b1-9984-43a541ad0f74'
'TXXX:MusicBrainz Release Track Id'                 '35e5a856-47c2-34c7-b2df-58d1dae37f50'
'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:mood'                                         'Not acoustic/Relaxed/Not happy/Not party/Not aggressive/Not electronic/Sad'
'TXXX:originalyear'                                 '2003'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.26 dB'
'TXXX:replaygain_track_peak'                        '0.571661'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fa35f916-667d-4dc2-a2f0-4d51379f17b2')

========================== row from database ==========================
                                              'id'  1522905
                                            'path'  /data/Music/Bulk/00instruments-classical/Edith Piaf/Hymne A L_amour/18 - Simply a Waltz.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  198
                                           'genre'  loc-eur-france
                                        'filesize'  3207571
                                           'mtime'  1620533739
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Edith A L_amour 18 loc eur france
                                      'tag_artist'  Édith Piaf
                                     'tag_release'  Hymne à l'amour
                                       'tag_title'  Simply a Waltz
                                             'bpm'  112.0
                                    'search_title'  'a':2 'simply':1 'waltz':3
                                   'search_artist'  'edith':1,2 'piaf':3
                                  'search_release'  'a':2,3 'amour':5 'hymne':1 'l':4 'lamour':6
                                     'search_rest'  '00instruments':1 '18':7 'a':4 'amour':6 'classical':2 'edith':3 'eur':9 'france':10 'l':5 'loc':8
                                    'search_combo'  '00instruments':13 '18':19 'a':2A,8C,9C,16 'amour':11C,18 'classical':14 'edith':4B,5B,15 'eur':21 'france':22 'hymne':7C 'l':10C,17 'lamour':12C 'loc':20 'piaf':6B 'simply':1A 'waltz':3A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  12B
                                           '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-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533739.2661452  (2021-05-09 06:15:39)
                             'size'  3207571