======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '123'
                                          'artist'  'Édith Piaf'
                                     'text_people'  ''
                                         'release'  "L'Homme à la moto"
                                           'title'  "L'Homme au piano"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'Q-PLAY-3', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-1', 'q-other-2', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '23'
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '108'
                                             'key'  '4A'
                                        'acoustid'  '48c5d198-ba88-4e74-8b6d-d8798c06a771'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "L'Homme à la moto"
'TBPM' (BPM (beats per minute))                     '108'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         "L'Homme au piano"
'TKEY' (Initial key)                                '4A'
'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 Music France'
'TRCK' (Track number/Position in set)               '6/23'
'TSO2'                                              'Piaf, Édith'
'TSOP' (Performer sort order)                       'Piaf, Édith'
'TSRC' (ISRC (international standard recording code))  'FRZ115400150'
'TXXX:ASIN'                                         'B0000076J2'
'TXXX:Acoustid Id'                                  '48c5d198-ba88-4e74-8b6d-d8798c06a771'
'TXXX:Artists'                                      'Édith Piaf'
'TXXX:BARCODE'                                      '724382713920'
'TXXX:MusicBrainz Album Artist Id'                  '4f8ef4a3-40fa-46b5-8773-97686a8424f4'
'TXXX:MusicBrainz Album Id'                         'c31416b7-f117-48b8-8e2a-60cba18ec45b'
'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'                 'da5393a3-c872-3ba4-9d1c-3f3c21b879ee'
'TXXX:MusicBrainz Release Track Id'                 '2e1c7021-6c74-395b-a546-2d929a1a8093'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']
'TXXX:originalyear'                                 '1993'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.32 dB'
'TXXX:replaygain_track_peak'                        '0.561879'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'e0b8e6dc-e42f-4f22-82ac-ff928ea22d3d')

========================== row from database ==========================
                                              'id'  1529880
                                            'path'  /data/Music/Bulk/00instruments-classical/Edith Piaf/L_homme A La Moto/06 - L_homme au Piano.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  123
                                           'genre'  loc-eur-france
                                        'filesize'  2002698
                                           'mtime'  1620533811
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Edith L_homme A La Moto 06 L_homme Piano loc eur france
                                      'tag_artist'  Édith Piaf
                                     'tag_release'  L'Homme à la moto
                                       'tag_title'  L'Homme au piano
                                             'bpm'  108.0
                                    'search_title'  'au':4 'homme':2 'l':1 'lhomme':3 'piano':5
                                   'search_artist'  'edith':1,2 'piaf':3
                                  'search_release'  'a':4,5 'homme':2 'l':1 'la':6 'lhomme':3 'moto':7
                                     'search_rest'  '00instruments':1 'a':6 'classical':2 'edith':3 'eur':11 'france':12 'homme':5 'l':4 'la':7 'loc':10 'moto':8 'piano':9
                                    'search_combo'  '00instruments':16 'a':12C,13C,21 'au':4A 'classical':17 'edith':6B,7B,18 'eur':26 'france':27 'homme':2A,10C,20 'l':1A,9C,19 'la':14C,22 'lhomme':3A,11C 'loc':25 'moto':15C,23 'piaf':8B 'piano':5A,24
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['chanson francaise', 'jazz', 'chanson', 'female vocalists', 'french']
                                        'tag_date'  1993
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620533811.4277823  (2021-05-09 06:16:51)
                             'size'  2002698