======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '327'
                                          'artist'  'Rammstein'
                                     'text_people'  'Günter Joseck'
                                         'release'  ''
                                           'title'  'Spieluhr'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['industrial metal', 'german', 'industrial', 'metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '4'
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'eid-metal-industrial'
                                             'bpm'  '127'
                                             'key'  '7A'
                                        'acoustid'  '15b985a8-a70f-459f-bb66-2255b6e47c29'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '127'
'TCOM' (Composer)                                   'Rammstein'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-industrial'
'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=[['engineer', 'Myriam Corrège'], ['engineer', 'Ulf Kruckenberg'], ['producer', 'Jacob Hellner'], ['producer', 'Rammstein'], ['mix', 'Stefan Glaumann'], ['orchestra', 'Deutsches Filmorchester Babelsberg'], ['bass guitar', 'Oliver Riedel'], ['membranophone', 'Christoph Schneider'], ['guitar family', 'Richard Z. Kruspe'], ['guitar family', 'Paul Landers'], ['keyboard', 'Christian Lorenz'], ['vocals', 'Till Lindemann']])
'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)                              '2/2'
'TPUB' (Publisher)                                  'Motor Music'
'TRCK' (Track number/Position in set)               '4/4'
'TSO2'                                              'Rammstein'
'TSOC'                                              'Rammstein'
'TSOP' (Performer sort order)                       'Rammstein'
'TSST' (Set subtitle)                               'Bonus live CD'
'TXXX:ASIN'                                         'B00005QHSS'
'TXXX:Acoustid Id'                                  '15b985a8-a70f-459f-bb66-2255b6e47c29'
'TXXX:Artists'                                      'Rammstein'
'TXXX:BARCODE'                                      '731458936725'
'TXXX:CATALOGNUMBER'                                '589 367-2'
'TXXX:Mp3gain_minmax'                               '134,190'
'TXXX:Mp3gain_undo'                                 '+006,+006,N'
'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:lastfmtags'                                   ['industrial metal', 'german', 'industrial', 'metal', 'rock']
'TXXX:originalyear'                                 '2001'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.75 dB'
'TXXX:replaygain_track_peak'                        '0.406096'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'3aed0f39-8554-44b6-a715-be72647fc57e')

========================== row from database ==========================
                                              'id'  1285855
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/spieluhr_mutter-tour-edition.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  327
                                           'genre'  eid-metal-industrial
                                        'filesize'  5286762
                                           'mtime'  1620311113
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] spieluhr_mutter tour edition eid metal industrial
                                      'tag_artist'  Rammstein
                                     'tag_release'  None
                                       'tag_title'  Spieluhr
                                             'bpm'  127.0
                                    'search_title'  'spieluhr':1
                                   'search_artist'  'rammstein':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'edition':10 'eid':11 'files':5,6 'industrial':13 'loose':3,4 'metal':12 'mutter':8 'spieluhr':7 'tour':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':3 'edition':12 'eid':13 'files':7,8 'industrial':15 'loose':5,6 'metal':14 'mutter':10 'rammstein':2B 'spieluhr':1A,9 'tour':11 'unsorted':4
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['industrial metal', 'german', 'industrial', 'metal', 'rock']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620311113.2338116  (2021-05-06 16:25:13)
                             'size'  5286762