======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '286'
                                          'artist'  'Mark Stewart'
                                     'text_people'  ''
                                         'release'  'Funky Alternatives Volume One & Two'
                                           'title'  'Anger'
                                           'quals'  ("['Q-UNU-2', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['dub', 'post-punk', 'industrial', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '16'
                                            'date'  '1988'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '102.333'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000006E8 0000051A 00002575 00001FE0 000369FA 0000156D 00005EB1 00006E9A '
 '0002117D 00023E2F')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000978 0000000000C073F8 00000000 0068AF30 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '16+6D85615BB79F7EB43CC8279E1026BFAE+439185'
'TALB' (Album/Movie/Show title)                     'Funky Alternatives Volume One & Two'
'TBPM' (BPM (beats per minute))                     '102.333'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1988'
'TENC' (Encoded by)                                 'iTunes v7.6.0.29'
'TIT2' (Title/songname/content description)         'Anger'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mark Stewart'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '12/16'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['dub', 'post-punk', 'industrial', 'electronic', 'experimental']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.79 dB'
'TXXX:replaygain_track_peak'                        '0.609960'

========================== row from database ==========================
                                              'id'  1284551
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/Cabaret Voltaire - 1988) [192k] Funky Alternatives  Volume 1 & 2 (Trance/12 Mark Stewart - Anger.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  286
                                           'genre'  electronic-unsorted
                                        'filesize'  7554739
                                           'mtime'  1620572479
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted Cabaret Voltaire 1988) [192k] 1 2 (Trance 12 electronic unsorted
                                      'tag_artist'  Mark Stewart
                                     'tag_release'  Funky Alternatives Volume One & Two
                                       'tag_title'  Anger
                                             'bpm'  102.333
                                    'search_title'  'anger':1
                                   'search_artist'  'mark':1 'stewart':2
                                  'search_release'  'alternatives':2 'funky':1 'one':4 'two':5 'volume':3
                                     'search_rest'  '00poprockelectronic':1 '1':9 '192k':7,8 '1988':5,6 '2':10 'cabaret':3 'electronic':13 'trance':11,12 'unsorted':2 'voltaire':4
                                    'search_combo'  '00poprockelectronic':9 '1':17 '192k':15,16 '1988':13,14 '2':18 'alternatives':5C 'anger':1A 'cabaret':11 'electronic':21 'funky':4C 'mark':2B 'one':7C 'stewart':3B 'trance':19,20 'two':8C 'unsorted':10 'voltaire':12 'volume':6C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dub', 'post-punk', 'industrial', 'electronic', 'experimental']
                                        'tag_date'  1988
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620572479.175688  (2021-05-09 17:01:19)
                             'size'  7554739