======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '233'
                                          'artist'  'Bago'
                                     'text_people'  'Alexander Spit'
                                         'release'  "Sunday's Best"
                                           'title'  'Bad on the Bottle'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', 'Q-HHRNBTT-3', "
 "'Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electronica', 'world', 'latin', 'soul', 'experimental']"
                                     'discogstags'  "['folk, world, & country', 'zouk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '10'
                                            'date'  '2012'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '135.004'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000605 00000617 00003CC4 00004B20 0002418D 0001DC05 000085DA 0000837B '
 '000299D0 0002690A')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000AF0 00000000009D2200 00000000 008E714F 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     "Sunday's Best"
'TBPM' (BPM (beats per minute))                     '135.004'
'TCOM' (Composer)                                   'Alexander Spit'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2012'
'TENC' (Encoded by)                                 'iTunes 10.5.3'
'TIT2' (Title/songname/content description)         'Bad on the Bottle'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bago'
'TRCK' (Track number/Position in set)               '3/10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'zouk']
'TXXX:lastfmtags'                                   ['electronica', 'world', 'latin', 'soul', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-3.16 dB'
'TXXX:replaygain_track_peak'                        '0.620955'

========================== row from database ==========================
                                              'id'  762941
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Bago - BAD ON THE BOTTLE.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  233
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  9594812
                                           'mtime'  1620586889
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism BAD ON THE BOTTLE hip hop or rnb or rap or turntablism
                                      'tag_artist'  Bago
                                     'tag_release'  Sunday's Best
                                       'tag_title'  Bad on the Bottle
                                             'bpm'  135.004
                                    'search_title'  'bad':1 'bottle':4 'on':2 'the':3
                                   'search_artist'  'bago':1
                                  'search_release'  'best':4 's':2 'sunday':1 'sundays':3
                                     'search_rest'  'bad':5 'bottle':8 'hip':9 'hiphop':1 'hop':10 'on':6 'or':11 'rap':2 'rnb':3 'the':7 'turntablism':4
                                    'search_combo'  'bad':1A,14 'bago':5B 'best':9C 'bottle':4A,17 'hip':18 'hiphop':10 'hop':19 'on':2A,15 'or':20 'rap':11 'rnb':12 's':7C 'sunday':6C 'sundays':8C 'the':3A,16 'turntablism':13
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'world', 'latin', 'soul', 'experimental']
                                        'tag_date'  2012
                                     'discogstags'  ['folk, world, & country', 'zouk']

============================== file details ==============================
                                           'mtime'  1620586889.0004833  (2021-05-09 21:01:29)
                             'size'  9594812