======================== unified (from filesystem) ========================
                                         'bitrate'  '171.902'
                                        'duration'  '224'
                                          'artist'  'One Self'
                                     'text_people'  ''
                                         'release'  'The Sound of Milano Fashion, V'
                                           'title'  'Bluebird'
                                           '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-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['hip-hop', 'ninja tune', 'underground hip-hop', 'hip hop', 'rap']"
                                     'discogstags'  "['hip hop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '86.290'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Sound of Milano Fashion, V'
'TBPM' (BPM (beats per minute))                     '86.290'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Bluebird'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'One Self'
'TRCK' (Track number/Position in set)               '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'                                  'hip hop'
'TXXX:lastfmtags'                                   ['hip-hop', 'ninja tune', 'underground hip-hop', 'hip hop', 'rap']
'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'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.67 dB'
'TXXX:replaygain_track_peak'                        '0.398928'

========================== row from database ==========================
                                              'id'  720019
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/One Self__cifsec54.mp3
                                         'working'  None
                                         'bitrate'  171
                                    'duration_sec'  224
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  4829211
                                           'mtime'  1620586337
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism Self__cifsec54 hip hop or rnb or rap or turntablism
                                      'tag_artist'  One Self
                                     'tag_release'  The Sound of Milano Fashion, V
                                       'tag_title'  Bluebird
                                             'bpm'  86.29
                                    'search_title'  'bluebird':1
                                   'search_artist'  'one':1 'self':2
                                  'search_release'  'fashion':5,6 'milano':4 'of':3 'sound':2 'the':1 'v':7
                                     'search_rest'  'cifsec54':6 'hip':7 'hiphop':1 'hop':8 'or':9 'rap':2 'rnb':3 'self':5 'turntablism':4
                                    'search_combo'  'bluebird':1A 'cifsec54':16 'fashion':8C,9C 'hip':17 'hiphop':11 'hop':18 'milano':7C 'of':6C 'one':2B 'or':19 'rap':12 'rnb':13 'self':3B,15 'sound':5C 'the':4C 'turntablism':14 'v':10C
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', '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-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['hip-hop', 'ninja tune', 'underground hip-hop', 'hip hop', 'rap']
                                        'tag_date'  2006
                                     'discogstags'  ['hip hop']

============================== file details ==============================
                                           'mtime'  1620586337.1667895  (2021-05-09 20:52:17)
                             'size'  4829211