======================== unified (from filesystem) ========================
                                         'bitrate'  '244.538'
                                        'duration'  '189'
                                          'artist'  'Christian Falk'
                                     'text_people'  ''
                                         'release'  'Pitchfork: The Top 500 Tracks of the 2000s'
                                           'title'  'Dream On (feat. Robyn and Ola Salo)'
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 "'q-grit-2', 'q-play-2', 'Q-OLDST-3', 'q-chart-3', 'q-drums-4', 'q-other-2', "
 "'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'q-mixbeat-2', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['dance', 'electronic', 'swedish', 'chillout', 'club']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '161'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '121.555'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pitchfork: The Top 500 Tracks of the 2000s'
'TBPM' (BPM (beats per minute))                     '121.555'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Dream On (feat. Robyn and Ola Salo)'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Christian Falk'
'TRCK' (Track number/Position in set)               '161'
'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'                                   ['dance', 'electronic', 'swedish', 'chillout', 'club']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+11.08 dB'
'TXXX:replaygain_track_peak'                        '0.128124'

========================== row from database ==========================
                                              'id'  1340015
                                            'path'  /data/Music/Bulk/00poprockelectronic/VA - Pitchfork - The Top 500 Tracks of the 2000s/161 - Christian Falk - Dream On (feat. Robyn and Ola Salo).mp3
                                         'working'  None
                                         'bitrate'  244
                                    'duration_sec'  189
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  5808908
                                           'mtime'  1621696846
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic VA 161 electronic generic radio unsorted
                                      'tag_artist'  Christian Falk
                                     'tag_release'  Pitchfork: The Top 500 Tracks of the 2000s
                                       'tag_title'  Dream On (feat. Robyn and Ola Salo)
                                             'bpm'  121.555
                                    'search_title'  'and':6 'dream':1 'feat':3,4 'ola':7 'on':2 'robyn':5 'salo':8,9
                                   'search_artist'  'christian':1 'falk':2
                                  'search_release'  '2000s':8 '500':5 'of':7 'pitchfork':1,2 'the':3 'top':4 'tracks':6
                                     'search_rest'  '00poprockelectronic':1 '161':3 'electronic':4 'generic':5 'radio':6 'unsorted':7 'va':2
                                    'search_combo'  '00poprockelectronic':20 '161':22 '2000s':19C '500':16C 'and':6A 'christian':10B 'dream':1A 'electronic':23 'falk':11B 'feat':3A,4A 'generic':24 'of':18C 'ola':7A 'on':2A 'pitchfork':12C,13C 'radio':25 'robyn':5A 'salo':8A,9A 'the':14C 'top':15C 'tracks':17C 'unsorted':26 'va':21
                                    'tag_tracknum'  161
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', '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-3', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronic', 'swedish', 'chillout', 'club']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696846.2091103  (2021-05-22 17:20:46)
                             'size'  5808908