======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '260'
                                          'artist'  'M.I.A.'
                                     'text_people'  'M.I.A.'
                                         'release'  'Kala'
                                           'title'  'XR2'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'female vocalists', 'indie', 'electronic', 'hip hop']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '12'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '130.1'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00001B40 00001DEC 0000F1AD 00010C7B 00019D5E 0000B6A7 00008E63 00009006 '
 '0001D38D 00012114')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000870 0000000000AF6C80 00000000 009F0635 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '12+6C8D7C39350149498125483900581ECC+9757482'
'TALB' (Album/Movie/Show title)                     'Kala'
'TBPM' (BPM (beats per minute))                     '130.1'
'TCOM' (Composer)                                   'M.I.A.'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'iTunes v7.3.2'
'TIT2' (Title/songname/content description)         'XR2'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'M.I.A.'
'TPE2' (Band/orchestra/accompaniment)               'M.I.A.'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '10/12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'female vocalists', 'indie', 'electronic', 'hip hop']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.343609'

========================== row from database ==========================
                                              'id'  1257874
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/M.I.A. - M.I.A/Kala/10 XR2.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  260
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  10463247
                                           'mtime'  1620585576
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism 10 hip hop or rnb or rap or turntablism
                                      'tag_artist'  M.I.A.
                                     'tag_release'  Kala
                                       'tag_title'  XR2
                                             'bpm'  130.1
                                    'search_title'  'xr2':1
                                   'search_artist'  'a':3 'i':2 'm':1 'mia':4
                                  'search_release'  'kala':1
                                     'search_rest'  'hip':5 'hiphop':1 'hop':6 'or':7 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  'a':4B 'hip':11 'hiphop':7 'hop':12 'i':3B 'kala':6C 'm':2B 'mia':5B 'or':13 'rap':8 'rnb':9 'turntablism':10 'xr2':1A
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'female vocalists', 'indie', 'electronic', 'hip hop']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620585575.7942536  (2021-05-09 20:39:35)
                             'size'  10463247