======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '158'
                                          'artist'  'Beastie Boys'
                                     'text_people'  ''
                                         'release'  'Solid Gold Hits'
                                           'title'  'Brass Monkey'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['alternative', 'hip hop', 'rap', 'rock']"
                                     'discogstags'  "['hip hop', 'pop rap']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '15'
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '116.587'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 0000130D 0000045E 00023B9B'
'COMM:iTunNORM:eng'                                 (' 0000130D 0000045E 00023B9B 0000E0C4 000032B6 00002EBC 00009004 00009230 '
 '000026AC 000026AC')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000768 00000000006AB708 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '15+B498E89C2B7BEDBF46682EA85B7AD585+6412437'
'TALB' (Album/Movie/Show title)                     'Solid Gold Hits'
'TBPM' (BPM (beats per minute))                     '116.587'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '1986'
'TENC' (Encoded by)                                 'iTunes v6.0.1.3'
'TIT2' (Title/songname/content description)         'Brass Monkey'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Beastie Boys'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '2/15'
'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'                                  ['hip hop', 'pop rap']
'TXXX:lastfmtags'                                   ['alternative', 'hip hop', 'rap', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.474269'

========================== row from database ==========================
                                              'id'  1283060
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beasty Boys/Solid Gold Hits/02 Brass Monkey.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  158
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  3257117
                                           'mtime'  1620567606
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Beasty 02 hip hop or rnb or rap or turntablism
                                      'tag_artist'  Beastie Boys
                                     'tag_release'  Solid Gold Hits
                                       'tag_title'  Brass Monkey
                                             'bpm'  116.587
                                    'search_title'  'brass':1 'monkey':2
                                   'search_artist'  'beastie':1 'boys':2
                                  'search_release'  'gold':2 'hits':3 'solid':1
                                     'search_rest'  '00poprockelectronic':1 'beasty':2 'hip':3 'hop':4 'or':5 'rap':7 'rnb':6 'turntablism':8
                                    'search_combo'  '00poprockelectronic':8 'beastie':3B 'beasty':9 'boys':4B 'brass':1A 'gold':6C 'hip':10 'hits':7C 'hop':11 'monkey':2A 'or':12 'rap':14 'rnb':13 'solid':5C 'turntablism':15
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-1', '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-4', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative', 'hip hop', 'rap', 'rock']
                                        'tag_date'  1986
                                     'discogstags'  ['hip hop', 'pop rap']

============================== file details ==============================
                                           'mtime'  1620567606.2276149  (2021-05-09 15:40:06)
                             'size'  3257117