======================== unified (from filesystem) ========================
                                         'bitrate'  '190.048'
                                        'duration'  '287'
                                          'artist'  'Rammstein'
                                     'text_people'  'Günter Joseck'
                                         'release'  'Mutter'
                                           'title'  'Spieluhr'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-4', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['industrial metal', 'german', 'industrial', 'metal', 'rock']"
                                     'discogstags'  "['electronic', 'rock', 'industrial', 'goth rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '11'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-ebm or industrial or darkwave'
                                             'bpm'  '128.9'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'GEOB:RealJukebox:Metadata'                         GEOB(encoding=<Encoding.LATIN1: 0>, mime='binary', filename='', desc='RealJukebox:Metadata', data=b'RJEX\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x06zys001\x00\x00\x00L\x01\x02\x00\x00\x02f\x00\x00\x00\xa4\x00\x00\x95?\x06N\xfdh\xf3Be\xdc\x1d?\xb9X\xc8\x13\xc1e\xcf\x9c\t\xad\x88\xd99\x07\xd5X[\xc2\xaba5u\x9dNQ\x0f\x10\xd2\x0c!r&\x1e\xa8\x8dkW\xa4\xc7\x0c\n\xd4\x84!`\x04\xa1\x89 \x9bSX\x00\x00\x02\x00.\x83\xec\x92\xa7\xae\x0e\xab\xc2\x90\xefe\xfc\xde\xf1\xc4\xfe\x93\x15\xa6t\xe1~\xc00\xbe\xbd"\t\x16\x99\xc0\x1bk\xb7\xb9\xab\xab\xad\xb2\x0cA\xa4\xd1\x98\x02h\x99\xaf\x7fB\x97\xd1eO\xbdlH\x8b\xa1W\xcb\xc8s\xd3\xbc4\x85\x8ex*\xf8\xd0\t<\xc8\xab\xe5E\xf6\xf9c\x90\xfd\xc1d\xb3\x17\x0e\xc3\x8ddl\x04\xb8J\xe8\xdb7\x06w&C\xe4\x8a\xb1JBE}:5\x030>\x8bQ\xa6,v\x10u\xec#\xf7\x00\xd6\xc5\x9ePK>W\x88\xf0\xb4\xaf]Ri&\xe0\x02\x12\xed\xd1\xfd_Xn\x97\t&E\x96\x9c5*cy\xd1\xb8\xf6\xd2\xb1$\x9d\xd7m\xach\x7f\x8f\xc9\xde\xa4\xfe\xda)@\xf6\xc4\xbe K\x8e\x0c\x93\xd4\xbe\xc8/\xe7u\x04\xf3~\xcb\x8d\x02\x86=q\xeej\xfb\xa1\xa8E\xe0\xba\xcd\xfd\xe0z\xdf\xa5\xd2I\xcb=\xfe\x97\x95\x04\x0b\xeeo\xce_\x9cN\x03\x12\xaa\x9d\x8f_\xa3:}\xe4\xa0\x83\x1c\xdc{\x18\x01a\xdb\x84\xee\xd60\xd3\xce\x01\xb77\xcc\x0fq\xe1\x8d\xf1\x0b\xfb\xe9\x8b\x01\xac\xa4\n\xb6\x01\xaf\x7f\xed\x98~\xee\xbe\xb7\xd3\xd4\x1f3\xda\x12\x179\r\xdf\x9d\x902\xef\x9d\xe8\xd4`\x9es\xf3\x9a<\xa8}!\xeb\xdd\x9a\xdb\x16F4\xa8.\xa5\xcbf\xd2]\xa3#\xd6\xf9\x89\xf9\x97\x0fN%z\xfb8\xbav\x96`o26\xff\x96]\xab\xefA\xab\x0b\xc8\xfb]F\x89\xf7\x8e\xe5:=\x85\x9fn\xec\xcc9{\xcaZ\xd0-"\xfe\xa5\xa5f\x7f\xcc6M\xc7\xf3\x8a\x00\x9d\xbfP!6\xdfg\xafh\xd9\x0c\xd6`_\xfd\xcc(\xd1T\x01\x8e\x06\x96l\xf0$\xcb\xb0\xea\xc5%\xdf\xcb\r\x0bH\xc8\xa2\xd18\x1b\x7f\xd2\x15\xd4`>JS\x9c\xc3y\rK\xc6\x8a\xd8"\xc9Vho+?\xe97\xca\xae\x00\xa54rE\x16\xb5\xceK\x90\x1dx\x05\x06R\xc3\xad\xc7.\xfcN\xf4\xb2U[\x9f\x1eZ\xda\xd5\x86J:\x8ap\xc1\xb5\xa6\xd2O\x19\xad\x1bu\x87\xc7\x83W\xfe\xfd\xabv\x9a z\x88\xbf\x9a')
'TALB' (Album/Movie/Show title)                     'Mutter'
'TBPM' (BPM (beats per minute))                     '128.9'
'TCOM' (Composer)                                   'Rammstein'
'TCON' (Content type, a.k.a. Genre)                 'eid-ebm or industrial or darkwave'
'TDOR' (Original release time)                      '2001'
'TDRC' (Recording time)                             '2001-10-29'
'TEXT' (Lyricist/Text writer)                       'Rammstein'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Jacob Hellner'], ['producer', 'Rammstein'], ['engineer', 'Ulf Kruckenberg'], ['engineer', 'Myriam Corrège'], ['mix', 'Stefan Glaumann'], ['bass guitar', 'Oliver Riedel'], ['orchestra', 'Deutsches Filmorchester Babelsberg'], ['drums', 'Christoph Schneider'], ['vocal', 'Till Lindemann'], ['keyboard', 'Christian Lorenz'], ['guitars', 'Richard Z. Kruspe'], ['guitars', 'Paul Landers']])
'TIT2' (Title/songname/content description)         'Spieluhr'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Rammstein'
'TPE2' (Band/orchestra/accompaniment)               'Rammstein'
'TPE3' (Conductor/performer refinement)             'Günter Joseck'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Motor Music'
'TRCK' (Track number/Position in set)               '7/11'
'TSO2'                                              'Rammstein'
'TSOP' (Performer sort order)                       'Rammstein'
'TSRC' (ISRC (international standard recording code))  'DEN120100003'
'TXXX:ASIN'                                         'B00005QHSS'
'TXXX:BARCODE'                                      '731458936725'
'TXXX:CATALOGNUMBER'                                '589 367-2'
'TXXX:MusicBrainz Album Artist Id'                  'b2d122f9-eadb-4930-a196-8f221eeb0c66'
'TXXX:MusicBrainz Album Id'                         '9da5a7f9-bb2b-3421-bf82-29b4f124c6b3'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'b2d122f9-eadb-4930-a196-8f221eeb0c66'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['electronic', 'rock', 'industrial', 'goth rock']
'TXXX:lastfmtags'                                   ['industrial metal', 'german', 'industrial', 'metal', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.47 dB'
'TXXX:replaygain_track_peak'                        '0.534674'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8f04367f-78d4-45b4-9a83-5abeaa014c86')

========================== row from database ==========================
                                              'id'  1318223
                                            'path'  /data/Music/Bulk/00poprockelectronic/Rammstein/Mutter/Rammstein - Spieluhr - 07.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  287
                                           'genre'  eid-ebm or industrial or darkwave
                                        'filesize'  6828820
                                           'mtime'  1620296960
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 eid ebm or industrial or darkwave
                                      'tag_artist'  Rammstein
                                     'tag_release'  Mutter
                                       'tag_title'  Spieluhr
                                             'bpm'  128.9
                                    'search_title'  'spieluhr':1
                                   'search_artist'  'rammstein':1
                                  'search_release'  'mutter':1
                                     'search_rest'  '00poprockelectronic':1 'darkwave':6 'ebm':3 'eid':2 'industrial':5 'or':4
                                    'search_combo'  '00poprockelectronic':4 'darkwave':9 'ebm':6 'eid':5 'industrial':8 'mutter':3C 'or':7 'rammstein':2B 'spieluhr':1A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-4']
                                      'lastfmtags'  ['industrial metal', 'german', 'industrial', 'metal', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic', 'rock', 'industrial', 'goth rock']

============================== file details ==============================
                                           'mtime'  1620296959.9476595  (2021-05-06 12:29:19)
                             'size'  6828820