======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '299'
                                          'artist'  'Dr. Lektroluv'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'My Radio'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['belgium', 'electronica', 'electro', 'electronic', 'belgian']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-we-electro'
                                             'bpm'  '130.988'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '130.988'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electro'
'TIT2' (Title/songname/content description)         'My Radio'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dr. Lektroluv'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['belgium', 'electronica', 'electro', 'electronic', 'belgian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.41 dB'
'TXXX:replaygain_track_peak'                        '0.538869'

========================== row from database ==========================
                                              'id'  1284679
                                            'path'  /data/Music/Bulk/00poprockelectronic/00electro-electropop-synthpop/Dr. Lektroluv/My Radio.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  299
                                           'genre'  electronic-we-electro
                                        'filesize'  4790321
                                           'mtime'  1621696731
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00electro electropop synthpop electronic we electro
                                      'tag_artist'  Dr. Lektroluv
                                     'tag_release'  None
                                       'tag_title'  My Radio
                                             'bpm'  130.988
                                    'search_title'  'my':1 'radio':2
                                   'search_artist'  'dr':1,2 'lektroluv':3
                                  'search_release'  
                                     'search_rest'  '00electro':2 '00poprockelectronic':1 'electro':7 'electronic':5 'electropop':3 'synthpop':4 'we':6
                                    'search_combo'  '00electro':7 '00poprockelectronic':6 'dr':3B,4B 'electro':12 'electronic':10 'electropop':8 'lektroluv':5B 'my':1A 'radio':2A 'synthpop':9 'we':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['belgium', 'electronica', 'electro', 'electronic', 'belgian']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696731.1461492  (2021-05-22 17:18:51)
                             'size'  4790321