======================== unified (from filesystem) ========================
                                         'bitrate'  '269.587'
                                        'duration'  '422'
                                          'artist'  'Trans Am'
                                     'text_people'  ''
                                         'release'  'Futureworld'
                                           'title'  'Futureworld'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'electronic', 'indie', 'post rock', 'experimental']"
                                     'discogstags'  "['techno', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  '10'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'rock-post'
                                             'bpm'  '141.216'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000590 000004B5 000020BD'
'COMM:iTunNORM:eng'                                 (' 00000590 000004B5 000020BD 0000152C 00012C35 0002FEC9 00007DE3 00007BC5 '
 '0002FE9B 00017F86')
'TALB' (Album/Movie/Show title)                     'Futureworld'
'TBPM' (BPM (beats per minute))                     '141.216'
'TCON' (Content type, a.k.a. Genre)                 'rock-post'
'TDRC' (Recording time)                             '1999'
'TENC' (Encoded by)                                 'Exact Audio Copy   (Sicherer Modus)'
'TIT2' (Title/songname/content description)         'Futureworld'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Trans Am'
'TPE2' (Band/orchestra/accompaniment)               'Trans Am'
'TRCK' (Track number/Position in set)               '03/10'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['techno', 'electronic']
'TXXX:lastfmtags'                                   ['instrumental', 'electronic', 'indie', 'post rock', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.07 dB'
'TXXX:replaygain_track_peak'                        '0.528759'

========================== row from database ==========================
                                              'id'  1313530
                                            'path'  /data/Music/Bulk/00poprockelectronic/Trans Am/[1999] Futureworld/03 Futureworld.mp3
                                         'working'  None
                                         'bitrate'  269
                                    'duration_sec'  422
                                           'genre'  rock-post
                                        'filesize'  14238202
                                           'mtime'  1636400267
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [1999] 03 rock post
                                      'tag_artist'  Trans Am
                                     'tag_release'  Futureworld
                                       'tag_title'  Futureworld
                                             'bpm'  141.216
                                    'search_title'  'futureworld':1
                                   'search_artist'  'am':2 'trans':1
                                  'search_release'  'futureworld':1
                                     'search_rest'  '00poprockelectronic':1 '1999':2,3 'post':5 'rock':4
                                    'search_combo'  '00poprockelectronic':5 '1999':6,7 'am':3B 'futureworld':1A,4C 'post':9 'rock':8 'trans':2B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'electronic', 'indie', 'post rock', 'experimental']
                                        'tag_date'  1999
                                     'discogstags'  ['techno', 'electronic']

============================== file details ==============================
                                           'mtime'  1636400266.9241345  (2021-11-08 20:37:46)
                             'size'  14238202