======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '192'
                                          'artist'  'Marlene Dietrich'
                                     'text_people'  ''
                                         'release'  'Marlene Dietrich: Unvergeßliche Schlager-Erfolge'
                                           'title'  "Quand l'amour meurt"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['german', 'cabaret', 'female vocalists', 'oldies', 'deutsch']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '12'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '115.9'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '12+6806F46BA415AEA22F5FC43DE'
'COMM:iTunes_CDDB_IDs:eng'                          '12+6806F46BA415AEA22F5FC43DE91F9E2A+912322'
'TALB' (Album/Movie/Show title)                     'Marlene Dietrich: Unvergeßliche Schlager-Erfolge'
'TBPM' (BPM (beats per minute))                     '115.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '1996'
'TENC' (Encoded by)                                 'iTunes X v2.0.3'
'TIT2' (Title/songname/content description)         "Quand l'amour meurt"
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Marlene Dietrich'
'TPE2' (Band/orchestra/accompaniment)               'Marlene Dietrich'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Disky'
'TRCK' (Track number/Position in set)               '4/12'
'TSO2'                                              'Dietrich, Marlene'
'TSOP' (Performer sort order)                       'Dietrich, Marlene'
'TXXX:ASIN'                                         'B0000242II'
'TXXX:Artists'                                      'Marlene Dietrich'
'TXXX:BARCODE'                                      '0724348660329'
'TXXX:CATALOGNUMBER'                                '866032'
'TXXX:MusicBrainz Album Artist Id'                  '191cba6a-b83f-49ca-883c-02b20c7a9dd5'
'TXXX:MusicBrainz Album Id'                         'eba9a326-c1ea-42e6-abb4-28ca1085ccad'
'TXXX:MusicBrainz Album Release Country'            'NL'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '191cba6a-b83f-49ca-883c-02b20c7a9dd5'
'TXXX:MusicBrainz Release Group Id'                 '761edeb4-7691-3614-81c4-88fcde34c710'
'TXXX:MusicBrainz Release Track Id'                 'dae591c6-96f0-356b-b802-9833547e6503'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['german', 'cabaret', 'female vocalists', 'oldies', 'deutsch']
'TXXX:originalyear'                                 '1992'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.09 dB'
'TXXX:replaygain_track_peak'                        '0.591106'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'64039989-fe47-489a-baa2-df467b642a49')

========================== row from database ==========================
                                              'id'  1505623
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marl Dietrich - ne/Unverge_liche Schlagererfolge/04 Quand l_amour meurt.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  192
                                           'genre'  prerock-unsorted
                                        'filesize'  4686577
                                           'mtime'  1621698488
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unverge_liche Schlagererfolge 04 l_amour prerock unsorted
                                      'tag_artist'  Marlene Dietrich
                                     'tag_release'  Marlene Dietrich: Unvergeßliche Schlager-Erfolge
                                       'tag_title'  Quand l'amour meurt
                                             'bpm'  115.9
                                    'search_title'  'amour':3 'l':2 'lamour':4 'meurt':5 'quand':1
                                   'search_artist'  'dietrich':2 'marlene':1
                                  'search_release'  'dietrich':2,3 'erfolge':7 'marlene':1 'schlager':6 'schlagererfolge':8 'unvergessliche':5 'unvergeßliche':4
                                     'search_rest'  '00poprockelectronic':1 'amour':6 'l':5 'liche':3 'prerock':7 'schlagererfolge':4 'unsorted':8 'unverge':2
                                    'search_combo'  '00poprockelectronic':16 'amour':3A,21 'dietrich':7B,9C,10C 'erfolge':14C 'l':2A,20 'lamour':4A 'liche':18 'marlene':6B,8C 'meurt':5A 'prerock':22 'quand':1A 'schlager':13C 'schlagererfolge':15C,19 'unsorted':23 'unverge':17 'unvergessliche':12C 'unvergeßliche':11C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['german', 'cabaret', 'female vocalists', 'oldies', 'deutsch']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698488.018751  (2021-05-22 17:48:08)
                             'size'  4686577