======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '219'
                                          'artist'  "Basile and Ze Pech'Nouz Groupe "
                                     'text_people'  ''
                                         'release'  'Ma Charette Est Malade, Mon Cheval Est Casse EP'
                                           'title'  "Le Tube De L'Annee"
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '125.006'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000008DC 000008DC 00009C94 00009C94 0002FAF5 0002FAF5 000083DC 000083DC '
 '0001FF39 0001FF39')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B0F 000000000093BA61 00000000 006B214F 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Ma Charette Est Malade, Mon Cheval Est Casse EP'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TENC' (Encoded by)                                 'iTunes 10.2'
'TIT2' (Title/songname/content description)         "Le Tube De L'Annee"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               "Basile and Ze Pech'Nouz Groupe "
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:other'                                        "Le Tube De L'Annee"
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.29 dB'
'TXXX:replaygain_track_peak'                        '0.433162'

========================== row from database ==========================
                                              'id'  1510213
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00french/Ma Charette Est Malade, Mon Cheval Est Casse EP/4. Le Tube De L_Annee.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  219
                                           'genre'  loc-eur-france
                                        'filesize'  7049010
                                           'mtime'  1620534639
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00french 4. L_Annee loc eur france
                                      'tag_artist'  Basile and Ze Pech'Nouz Groupe 
                                     'tag_release'  Ma Charette Est Malade, Mon Cheval Est Casse EP
                                       'tag_title'  Le Tube De L'Annee
                                             'bpm'  125.006
                                    'search_title'  'annee':5 'de':3 'l':4 'lannee':6 'le':1 'tube':2
                                   'search_artist'  'and':2 'basile':1 'groupe':7 'nouz':5 'pech':4 'pechnouz':6 'ze':3
                                  'search_release'  'casse':8 'charette':2 'cheval':7 'ep':9 'est':3 'ma':1 'malade':4,5 'mon':6
                                     'search_rest'  '00french':4 '00mid':1 '4':5,6 'annee':8 'eur':10 'europe':3 'france':11 'l':7 'loc':9 'north':2
                                    'search_combo'  '00french':26 '00mid':23 '4':27,28 'and':8B 'annee':5A,30 'basile':7B 'casse':21C 'charette':15C 'cheval':20C 'de':3A 'ep':22C 'est':16C 'eur':32 'europe':25 'france':33 'groupe':13B 'l':4A,29 'lannee':6A 'le':1A 'loc':31 'ma':14C 'malade':17C,18C 'mon':19C 'north':24 'nouz':11B 'pech':10B 'pechnouz':12B 'tube':2A 'ze':9B
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620534639.0885339  (2021-05-09 06:30:39)
                             'size'  7049010