======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '283'
                                          'artist'  'Madrugada'
                                     'text_people'  ''
                                         'release'  'The Nightly Disease'
                                           'title'  'The Frontman'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'indie rock', 'norwegian', 'rock', 'alternative']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '92.013'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Nightly Disease'
'TBPM' (BPM (beats per minute))                     '92.013'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'The Frontman'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '283167'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Madrugada'
'TPE2' (Band/orchestra/accompaniment)               'Madrugada'
'TPUB' (Publisher)                                  'Virgin'
'TRCK' (Track number/Position in set)               '7'
'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'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', 'indie rock', 'norwegian', 'rock', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.43 dB'
'TXXX:replaygain_track_peak'                        '0.480128'

========================== row from database ==========================
                                              'id'  1307988
                                            'path'  /data/Music/Bulk/00poprockelectronic/Madrugada/Grit/07 - The Frontman.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  283
                                           'genre'  rock-pop
                                        'filesize'  4532096
                                           'mtime'  1636917842
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Grit 07 rock pop
                                      'tag_artist'  Madrugada
                                     'tag_release'  The Nightly Disease
                                       'tag_title'  The Frontman
                                             'bpm'  92.013
                                    'search_title'  'frontman':2 'the':1
                                   'search_artist'  'madrugada':1
                                  'search_release'  'disease':3 'nightly':2 'the':1
                                     'search_rest'  '00poprockelectronic':1 'grit':2 'pop':4 'rock':3
                                    'search_combo'  '00poprockelectronic':7 'disease':6C 'frontman':2A 'grit':8 'madrugada':3B 'nightly':5C 'pop':10 'rock':9 'the':1A,4C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9A
                                           '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie rock', 'norwegian', 'rock', 'alternative']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636917841.7147555  (2021-11-14 20:24:01)
                             'size'  4532096