======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '225'
                                          'artist'  'Nick Hvppner '
                                     'text_people'  'Nick Höppner'
                                         'release'  'Dark Techno'
                                           'title'  'Relate (The Black Madonna Remix)'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
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                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '119.265'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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'TALB' (Album/Movie/Show title)                     'Dark Techno'
'TBPM' (BPM (beats per minute))                     '119.265'
'TCMP'                                              '1'
'TCOM' (Composer)                                   'Nick Höppner'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2016'
'TENC' (Encoded by)                                 'iTunes 12.4.1.6'
'TIT2' (Title/songname/content description)         'Relate (The Black Madonna Remix)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nick Hvppner '
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Ostgut Ton'
'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:q-bass'                                       '3'
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'TXXX:q-drums'                                      '4'
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'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.94 dB'
'TXXX:replaygain_track_peak'                        '0.537037'

========================== row from database ==========================
                                              'id'  1298320
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dark - Techno/Nick Höppner  - Relate (The Black Madonna Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  225
                                           'genre'  electronic-th-techno
                                        'filesize'  9081347
                                           'mtime'  1620568885
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Höppner electronic th techno
                                      'tag_artist'  Nick Hvppner 
                                     'tag_release'  Dark Techno
                                       'tag_title'  Relate (The Black Madonna Remix)
                                             'bpm'  119.265
                                    'search_title'  'black':4 'madonna':5 'relate':1 'remix':6,7 'the':2,3
                                   'search_artist'  'hvppner':2 'nick':1
                                  'search_release'  'dark':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':4 'hoppner':2,3 'techno':6 'th':5
                                    'search_combo'  '00poprockelectronic':12 'black':4A 'dark':10C 'electronic':15 'hoppner':13,14 'hvppner':9B 'madonna':5A 'nick':8B 'relate':1A 'remix':6A,7A 'techno':11C,17 'th':16 'the':2A,3A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-4', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620568884.7054796  (2021-05-09 16:01:24)
                             'size'  9081347