======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '108'
                                          'artist'  'The Days'
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                                      'lastfmtags'  "['rock', 'indie', 'alternative', 'piano rock', 'pop']"
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                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-we-new wave or post punk'
                                             'bpm'  '120.471'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '120.471'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk'
'TIT2' (Title/songname/content description)         'Welt am Draht'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Days'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock', 'indie', 'alternative', 'piano rock', 'pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.83 dB'
'TXXX:replaygain_track_peak'                        '0.473382'

========================== row from database ==========================
                                              'id'  1304600
                                            'path'  /data/Music/Bulk/00poprockelectronic/vol 7/07 the days - welt aus draht.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  108
                                           'genre'  electronic-we-new wave or post punk
                                        'filesize'  2614500
                                           'mtime'  1620573990
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic vol 7 07 the days welt aus draht electronic we new wave or post punk
                                      'tag_artist'  The Days
                                     'tag_release'  Abgang Innen Senkrecht Vol. 4
                                       'tag_title'  Welt am Draht
                                             'bpm'  120.471
                                    'search_title'  'am':2 'draht':3 'welt':1
                                   'search_artist'  'days':2 'the':1
                                  'search_release'  '4':6 'abgang':1 'innen':2 'senkrecht':3 'vol':4,5
                                     'search_rest'  '00poprockelectronic':1 '7':3 'aus':7 'days':5 'draht':8 'electronic':9 'new':11 'or':13 'post':14 'punk':15 'the':4 'vol':2 'wave':12 'we':10 'welt':6
                                    'search_combo'  '00poprockelectronic':12 '4':11C '7':14 'abgang':6C 'am':2A 'aus':18 'days':5B,16 'draht':3A,19 'electronic':20 'innen':7C 'new':22 'or':24 'post':25 'punk':26 'senkrecht':8C 'the':4B,15 'vol':9C,10C,13 'wave':23 'we':21 'welt':1A,17
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'indie', 'alternative', 'piano rock', 'pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573990.333008  (2021-05-09 17:26:30)
                             'size'  2614500