======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '373'
                                          'artist'  'Kruder & Dorfmeister'
                                     'text_people'  ''
                                         'release'  'the K&D sessions'
                                           'title'  'Depeche Mode   Useless'
                                           '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-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['lounge', 'downtempo', 'trip hop', 'electronic', 'chillout']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '95.169'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'the K&D sessions'
'TBPM' (BPM (beats per minute))                     '95.169'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TIT2' (Title/songname/content description)         'Depeche Mode   Useless'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Kruder & Dorfmeister'
'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'                                   ['lounge', 'downtempo', 'trip hop', 'electronic', 'chillout']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.26 dB'
'TXXX:replaygain_track_peak'                        '0.521594'

========================== row from database ==========================
                                              'id'  1329589
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Kruder & Dorfmeister/The K&D Sessions/Kruder & Dorfmeister - Useless (K&D Session Remix).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  373
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  5982201
                                           'mtime'  1636910653
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip The Sessions (K&D Session Remix) electronic trip hop downtempo acid jazz
                                      'tag_artist'  Kruder & Dorfmeister
                                     'tag_release'  the K&D sessions
                                       'tag_title'  Depeche Mode   Useless
                                             'bpm'  95.169
                                    'search_title'  'depeche':1 'mode':2 'useless':3
                                   'search_artist'  'dorfmeister':2 'kruder':1
                                  'search_release'  'd':3 'k':2 'kd':4 'sessions':5 'the':1
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 'acid':15 'd':6 'downtempo':14 'electronic':11 'hop':13 'jazz':16 'k':5 'kd':7 'remix':9,10 'session':8 'sessions':4 'the':3 'trip':12
                                    'search_combo'  '00poprockelectronic':11 '00trip':12 'acid':25 'd':8C,16 'depeche':1A 'dorfmeister':5B 'downtempo':24 'electronic':21 'hop':23 'jazz':26 'k':7C,15 'kd':9C,17 'kruder':4B 'mode':2A 'remix':19,20 'session':18 'sessions':10C,14 'the':6C,13 'trip':22 'useless':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', '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-3', 'q-syn-3', 'q-chart-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lounge', 'downtempo', 'trip hop', 'electronic', 'chillout']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636910652.770209  (2021-11-14 18:24:12)
                             'size'  5982201