======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '104'
                                          'artist'  'Traffic Signs'
                                     'text_people'  ''
                                         'release'  'Tiga - DJ Kicks'
                                           'title'  'The Big Fake'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'house', 'electro', 'tech house', 'minimal']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'electronic-we-electro'
                                             'bpm'  '119.688'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000F54 00000D94 00004A1C 00'
'COMM:iTunNORM:eng'                                 (' 00000F54 00000D94 00004A1C 00003B2D 00015FA7 00015FA7 00008000 00008000 '
 '0000002E 0000002E')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Tiga - DJ Kicks'
'TBPM' (BPM (beats per minute))                     '119.688'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electro'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'The Big Fake'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Traffic Signs'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['electronica', 'house', 'electro', 'tech house', 'minimal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.11 dB'
'TXXX:replaygain_track_peak'                        '0.390232'

========================== row from database ==========================
                                              'id'  1335281
                                            'path'  /data/Music/Bulk/00poprockelectronic/Tiga/DJ Kicks [2003]/04-traffic_signs--the_big_fake.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  104
                                           'genre'  electronic-we-electro
                                        'filesize'  2504790
                                           'mtime'  1621697813
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2003] 04 traffic_signs the_big_fake electronic we electro
                                      'tag_artist'  Traffic Signs
                                     'tag_release'  Tiga - DJ Kicks
                                       'tag_title'  The Big Fake
                                             'bpm'  119.688
                                    'search_title'  'big':2 'fake':3 'the':1
                                   'search_artist'  'signs':2 'traffic':1
                                  'search_release'  'dj':2 'kicks':3 'tiga':1
                                     'search_rest'  '00poprockelectronic':1 '2003':2,3 'big':7 'electro':11 'electronic':9 'fake':8 'signs':5 'the':6 'traffic':4 'we':10
                                    'search_combo'  '00poprockelectronic':9 '2003':10,11 'big':2A,15 'dj':7C 'electro':19 'electronic':17 'fake':3A,16 'kicks':8C 'signs':5B,13 'the':1A,14 'tiga':6C 'traffic':4B,12 'we':18
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'house', 'electro', 'tech house', 'minimal']
                                        'tag_date'  2002
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621697813.0174203  (2021-05-22 17:36:53)
                             'size'  2504790