======================== unified (from filesystem) ========================
                                         'bitrate'  '197.335'
                                        'duration'  '297'
                                          'artist'  'Zero 7'
                                     'text_people'  ''
                                         'release'  'When It Falls'
                                           'title'  'In Time'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['electronica', 'electronic', 'trip hop', 'downtempo', 'chillout']"
                                     'discogstags'  "['electronic', 'downtempo', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '11'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz;set-pl-sced'
                                             'bpm'  '123.935'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000333 0000037B 000010FD'
'COMM:iTunNORM:eng'                                 (' 00000333 0000037B 000010FD 00000E2A 000305EF 000305D8 0000786D 00007889 '
 '00029089 00029089')
'TALB' (Album/Movie/Show title)                     'When It Falls'
'TBPM' (BPM (beats per minute))                     '123.935'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-trip hop or downtempo or acid jazz', 'set-pl-sced']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'In Time'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Zero 7'
'TPE2' (Band/orchestra/accompaniment)               'Zero 7'
'TRCK' (Track number/Position in set)               '9/11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'downtempo', 'ambient']
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'trip hop', 'downtempo', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.87 dB'
'TXXX:replaygain_track_peak'                        '0.494599'

========================== row from database ==========================
                                              'id'  1342309
                                            'path'  /data/Music/Bulk/00poprockelectronic/Zero 7/[2004] When It Falls/09 In Time.mp3
                                         'working'  None
                                         'bitrate'  197
                                    'duration_sec'  297
                                           'genre'  electronic-trip hop or downtempo or acid jazz;set-pl-sced
                                        'filesize'  7366448
                                           'mtime'  1636911476
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2004] 09 electronic trip hop or downtempo or acid jazz;set pl sced
                                      'tag_artist'  Zero 7
                                     'tag_release'  When It Falls
                                       'tag_title'  In Time
                                             'bpm'  123.935
                                    'search_title'  'in':1 'time':2
                                   'search_artist'  '7':2 'zero':1
                                  'search_release'  'falls':3 'it':2 'when':1
                                     'search_rest'  '00poprockelectronic':1 '2004':2,3 'acid':9 'downtempo':8 'electronic':4 'hop':6 'jazz':10,12 'or':7 'pl':14 'sced':15 'set':11,13 'trip':5
                                    'search_combo'  '00poprockelectronic':8 '2004':9,10 '7':4B 'acid':16 'downtempo':15 'electronic':11 'falls':7C 'hop':13 'in':1A 'it':6C 'jazz':17,19 'or':14 'pl':21 'sced':22 'set':18,20 'time':2A 'trip':12 'when':5C 'zero':3B
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'trip hop', 'downtempo', 'chillout']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic', 'downtempo', 'ambient']

============================== file details ==============================
                                           'mtime'  1636911475.5462227  (2021-11-14 18:37:55)
                             'size'  7366448