======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '202'
                                          'artist'  'Twenty One Pilots'
                                     'text_people'  ''
                                         'release'  'Blurryface'
                                           'title'  'Stressed Out'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-3', 'q-syn-2', '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-2']")
                                      'lastfmtags'  "['indie', 'indie pop', 'alternative', 'electronic', 'rap']"
                                     'discogstags'  ("['alternative rock', 'indie rock', 'synth-pop', 'electronic', 'hip hop', "
 "'rock', 'pop']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '85.023'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blurryface'
'TBPM' (BPM (beats per minute))                     '85.023'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2015'
'TIT2' (Title/songname/content description)         'Stressed Out'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '202335'
'TPE1' (Lead performer(s)/Soloist(s))               'Twenty One Pilots'
'TPE2' (Band/orchestra/accompaniment)               'Twenty One Pilots'
'TRCK' (Track number/Position in set)               '02'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 64bits version 3.99.5 (http://lame.sf.net)'
'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'                                  ['alternative rock',
 'indie rock',
 'synth-pop',
 'electronic',
 'hip hop',
 'rock',
 'pop']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'electronic', 'rap']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.30 dB'
'TXXX:replaygain_track_peak'                        '0.402272'

========================== row from database ==========================
                                              'id'  1350435
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Twenty One Pilots - Stressed Out.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  202
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  8098268
                                           'mtime'  1620566359
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 hip hop or rnb or rap or turntablism
                                      'tag_artist'  Twenty One Pilots
                                     'tag_release'  Blurryface
                                       'tag_title'  Stressed Out
                                             'bpm'  85.023
                                    'search_title'  'out':2 'stressed':1
                                   'search_artist'  'one':2 'pilots':3 'twenty':1
                                  'search_release'  'blurryface':1
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'hip':3 'hop':4 'or':5 'rap':7 'rnb':6 'turntablism':8
                                    'search_combo'  '00poprockelectronic':7 '2016':8 'blurryface':6C 'hip':9 'hop':10 'one':4B 'or':11 'out':2A 'pilots':5B 'rap':13 'rnb':12 'stressed':1A 'turntablism':14 'twenty':3B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'electronic', 'rap']
                                        'tag_date'  2015
                                     'discogstags'  ['alternative rock', 'indie rock', 'synth-pop', 'electronic', 'hip hop', 'rock', 'pop']

============================== file details ==============================
                                           'mtime'  1620566358.5816123  (2021-05-09 15:19:18)
                             'size'  8098268