======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '69'
                                          'artist'  'Klaus Doldinger'
                                     'text_people'  ''
                                         'release'  "Das Boot (the Director's Cut): Original Filmmusik"
                                           'title'  'Erinnerung'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['instrumental', 'soundtrack composers', 'german', 'jazz', 'soundtrack', "
 "'composer']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '30'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '144.233'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Das Boot (the Director's Cut): Original Filmmusik"
'TBPM' (BPM (beats per minute))                     '144.233'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDOR' (Original release time)                      '1982'
'TDRC' (Recording time)                             '1997-08-04'
'TIT2' (Title/songname/content description)         'Erinnerung'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaus Doldinger'
'TPE2' (Band/orchestra/accompaniment)               'Klaus Doldinger'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'WEA Records'
'TRCK' (Track number/Position in set)               '12/30'
'TSO2'                                              'Doldinger, Klaus'
'TSOP' (Performer sort order)                       'Doldinger, Klaus'
'TSRC' (ISRC (international standard recording code))  'DEA629760650'
'TXXX:ASIN'                                         'B000006UOJ'
'TXXX:BARCODE'                                      '706301859728'
'TXXX:CATALOGNUMBER'                                '0630-18597-2'
'TXXX:MP3GAIN_MINMAX'                               '138,178'
'TXXX:MP3GAIN_UNDO'                                 '+001,+001,N'
'TXXX:MusicBrainz Album Artist Id'                  '0482dcfc-859a-49f7-859e-17070a63d578'
'TXXX:MusicBrainz Album Id'                         'ebb62cb4-bbdf-4128-a33a-df8cb6dae2a4'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'soundtrack'
'TXXX:MusicBrainz Artist Id'                        '0482dcfc-859a-49f7-859e-17070a63d578'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['instrumental',
 'soundtrack composers',
 'german',
 'jazz',
 'soundtrack',
 'composer']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.17 dB'
'TXXX:replaygain_track_peak'                        '0.504418'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9aaae84f-bc64-4ddd-977d-3a08ac99161e')

========================== row from database ==========================
                                              'id'  788551
                                            'path'  /data/Music/Bulk/0soundtrack/Das Boot/12 Erinnerung.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  69
                                           'genre'  soundtrack-video
                                        'filesize'  2774253
                                           'mtime'  1621699854
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 12 soundtrack video
                                      'tag_artist'  Klaus Doldinger
                                     'tag_release'  Das Boot (the Director's Cut): Original Filmmusik
                                       'tag_title'  Erinnerung
                                             'bpm'  144.233
                                    'search_title'  'erinnerung':1
                                   'search_artist'  'doldinger':2 'klaus':1
                                  'search_release'  'boot':2 'cut':8,9 'das':1 'director':5 'directors':7 'filmmusik':11 'original':10 's':6 'the':3,4
                                     'search_rest'  '0soundtrack':1 'soundtrack':2 'video':3
                                    'search_combo'  '0soundtrack':15 'boot':5C 'cut':11C,12C 'das':4C 'director':8C 'directors':10C 'doldinger':3B 'erinnerung':1A 'filmmusik':14C 'klaus':2B 'original':13C 's':9C 'soundtrack':16 'the':6C,7C 'video':17
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-3']
                                      'lastfmtags'  ['instrumental', 'soundtrack composers', 'german', 'jazz', 'soundtrack', 'composer']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621699854.3863478  (2021-05-22 18:10:54)
                             'size'  2774253