======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '183'
                                          'artist'  'Jean-Claude Risset'
                                     'text_people'  ''
                                         'release'  'Elementa'
                                           'title'  'Trois etudes en duo - Mercure'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', "
 "'Q-OLDST-3', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-4', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronic', 'earwaves', 'avant garde', 'experimental', 'musique concrete']"
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '12'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '139.1'
                                             'key'  '9A'
                                        'acoustid'  '54bdf726-08c6-4671-8c8f-63edb52b0569'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Elementa'
'TBPM' (BPM (beats per minute))                     '139.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Trois etudes en duo - Mercure'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Jean-Claude Risset'
'TPE2' (Band/orchestra/accompaniment)               'Jean-Claude Risset'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'INA-GRM'
'TRCK' (Track number/Position in set)               '6/12'
'TSO2'                                              'Risset, Jean-Claude'
'TSOP' (Performer sort order)                       'Risset, Jean-Claude'
'TXXX:Acoustid Id'                                  '54bdf726-08c6-4671-8c8f-63edb52b0569'
'TXXX:Artists'                                      'Jean-Claude Risset'
'TXXX:CATALOGNUMBER'                                'ina c 1019 cd'
'TXXX:MusicBrainz Album Artist Id'                  '5264157c-3140-40f9-b742-b54d010ba602'
'TXXX:MusicBrainz Album Id'                         '996694c6-df59-432e-8bfd-cb23bc065ca9'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5264157c-3140-40f9-b742-b54d010ba602'
'TXXX:MusicBrainz Release Group Id'                 '7df0ef0d-b0e1-3ff6-ad4f-3081fba0dcf1'
'TXXX:MusicBrainz Release Track Id'                 '1d64a1e7-c5bb-3a08-95b3-6c407fd8f2c0'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '3'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['electronic', 'earwaves', 'avant garde', 'experimental', 'musique concrete']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.64 dB'
'TXXX:replaygain_track_peak'                        '0.921876'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e6d25e1d-01fa-4753-be8e-06dd0ad9c96b')

========================== row from database ==========================
                                              'id'  768128
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/jean-claude risset - elementa [e.acoustique]/jean-claude risset - elementa - 06 - trios etudes en duo  mercure.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  183
                                           'genre'  electronic-experimental
                                        'filesize'  5883209
                                           'mtime'  1636917315
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm jean claude risset elementa [e.acoustique] jean claude risset elementa 06 trios mercure electronic experimental
                                      'tag_artist'  Jean-Claude Risset
                                     'tag_release'  Elementa
                                       'tag_title'  Trois etudes en duo - Mercure
                                             'bpm'  139.1
                                    'search_title'  'duo':4 'en':3 'etudes':2 'mercure':5 'trois':1
                                   'search_artist'  'claude':2 'jean':1 'jeanclaude':3 'risset':4
                                  'search_release'  'elementa':1
                                     'search_rest'  'acoustique':6 'claude':2 'e':5 'eacoustique':7 'electronic':10 'elementa':4 'experimental':11 'jean':1 'mercure':9 'risset':3 'trios':8
                                    'search_combo'  'acoustique':16 'claude':7B,12 'duo':4A 'e':15 'eacoustique':17 'electronic':20 'elementa':10C,14 'en':3A 'etudes':2A 'experimental':21 'jean':6B,11 'jeanclaude':8B 'mercure':5A,19 'risset':9B,13 'trios':18 'trois':1A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'earwaves', 'avant garde', 'experimental', 'musique concrete']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636917315.2766874  (2021-11-14 20:15:15)
                             'size'  5883209