======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '230'
                                          'artist'  'Serge Gainsbourg'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Suck Baby Suck (Chuck Berry, sexy, Dylan ref.)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['chanson', 'chanson francaise', 'pop', 'french', 'french pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '20'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-sex'
                                             'bpm'  '98.025'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 0000090F 000007EA 00004D59 00004E5C 0000EE78 0002DA68 0000780B 00007E8C '
 '00011300 00014A1A')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000007A4 00000000009B55CC 00000000 00547AF1 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '2C0F4D14+293938+20+150+18883+34315+45587+58816+74551+91189+103267+114764+140119+158596+175909+186579+197214+210729+221968+231137+241923+265603+276786'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '11'
'TBPM' (BPM (beats per minute))                     '98.025'
'TCON' (Content type, a.k.a. Genre)                 'set-th-sex'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Suck Baby Suck (Chuck Berry, sexy, Dylan ref.)'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Serge Gainsbourg'
'TRCK' (Track number/Position in set)               '11/20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['chanson', 'chanson francaise', 'pop', 'french', 'french pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.44 dB'
'TXXX:replaygain_track_peak'                        '0.576937'

========================== row from database ==========================
                                              'id'  768411
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/sexy/Serge Gainsbourg - Suck Baby Suck (Chuck Berry, sexy, Dylan ref.).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  230
                                           'genre'  set-th-sex
                                        'filesize'  5543641
                                           'mtime'  1621630340
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes set th
                                      'tag_artist'  Serge Gainsbourg
                                     'tag_release'  None
                                       'tag_title'  Suck Baby Suck (Chuck Berry, sexy, Dylan ref.)
                                             'bpm'  98.025
                                    'search_title'  'baby':2 'berry':5,6 'chuck':3,4 'dylan':9 'ref':10,11 'sexy':7,8 'suck':1
                                   'search_artist'  'gainsbourg':2 'serge':1
                                  'search_release'  
                                     'search_rest'  '0novelty':2 '0playlists':1 'set':4 'th':5 'themes':3
                                    'search_combo'  '0novelty':15 '0playlists':14 'baby':2A 'berry':5A,6A 'chuck':3A,4A 'dylan':9A 'gainsbourg':13B 'ref':10A,11A 'serge':12B 'set':17 'sexy':7A,8A 'suck':1A 'th':18 'themes':16
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['chanson', 'chanson francaise', 'pop', 'french', 'french pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630340.299348  (2021-05-21 22:52:20)
                             'size'  5543641