======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '177'
                                          'artist'  'Edvard Grieg'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Peer Gynt - Suite No.1 - In der Halle des Bergkönigs'
                                           'quals'  ("['Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['composers', 'norwegian', 'piano', 'romantic', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '13'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '105'
                                             'key'  '10A'
                                        'acoustid'  '27baa84c-b071-4468-a50c-e287d584d82a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TBPM' (BPM (beats per minute))                     '105'
'TCMP'                                              '1'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Peer Gynt - Suite No.1 - In der Halle des Bergkönigs'
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Edvard Grieg'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Deutsche Grammophon'
'TRCK' (Track number/Position in set)               '4/13'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Grieg, Edvard'
'TSRC' (ISRC (international standard recording code))  'DEF058730002'
'TXXX:ASIN'                                         'B000028DL5'
'TXXX:Acoustid Id'                                  '27baa84c-b071-4468-a50c-e287d584d82a'
'TXXX:Artists'                                      'Edvard Grieg'
'TXXX:BARCODE'                                      '028944515923'
'TXXX:Mp3gain_minmax'                               '000,197'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['composers', 'norwegian', 'piano', 'romantic', 'classical']
'TXXX:originalyear'                                 '1999'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.58 dB'
'TXXX:replaygain_track_peak'                        '0.878788'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'93ac5de4-66bc-41ee-99f6-08693fd50e8b')

========================== row from database ==========================
                                              'id'  1328682
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Peer Gynt Suite 1 - 4. In the Hall of the Mountain King.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  177
                                           'genre'  
                                        'filesize'  2867582
                                           'mtime'  1652397973
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 4. the of the Mountain King
                                      'tag_artist'  Edvard Grieg
                                     'tag_release'  None
                                       'tag_title'  Peer Gynt - Suite No.1 - In der Halle des Bergkönigs
                                             'bpm'  105.0
                                    'search_title'  '1':5 'bergkonigs':11,12 'der':8 'des':10 'gynt':2 'halle':9 'in':7 'no':4 'no1':6 'peer':1 'suite':3
                                   'search_artist'  'edvard':1 'grieg':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '4':7,8 'files':5,6 'king':12 'loose':3,4 'mountain':11 'of':10 'the':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':15 '1':5A '4':21,22 'bergkonigs':11A,12A 'der':8A 'des':10A 'edvard':13B 'files':19,20 'grieg':14B 'gynt':2A 'halle':9A 'in':7A 'king':26 'loose':17,18 'mountain':25 'no':4A 'no1':6A 'of':24 'peer':1A 'suite':3A 'the':23 'unsorted':16
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']
                                      'lastfmtags'  ['composers', 'norwegian', 'piano', 'romantic', 'classical']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397973.2474775  (2022-05-13 01:26:13)
                             'size'  2867582