======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '213'
                                          'artist'  'The Spitts'
                                     'text_people'  ''
                                         'release'  'Eight speed improved tracks ep'
                                           'title'  'Mesurement Johnny'
                                           'quals'  ("['Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', '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-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['punk rock', 'punk', 'three', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '141.216'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Eight speed improved tracks ep'
'TBPM' (BPM (beats per minute))                     '141.216'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TIT2' (Title/songname/content description)         'Mesurement Johnny'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Spitts'
'TPE2' (Band/orchestra/accompaniment)               'The Spitts'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk rock', 'punk', 'three', 'rock']
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.80 dB'
'TXXX:replaygain_track_peak'                        '0.398862'

========================== row from database ==========================
                                              'id'  1282868
                                            'path'  /data/Music/Bulk/00poprockelectronic/swedish rock/The Spitts - Mesurement Johnny.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  213
                                           'genre'  rock-pop
                                        'filesize'  3417984
                                           'mtime'  1620392815
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic swedish rock rock pop
                                      'tag_artist'  The Spitts
                                     'tag_release'  Eight speed improved tracks ep
                                       'tag_title'  Mesurement Johnny
                                             'bpm'  141.216
                                    'search_title'  'johnny':2 'mesurement':1
                                   'search_artist'  'spitts':2 'the':1
                                  'search_release'  'eight':1 'ep':5 'improved':3 'speed':2 'tracks':4
                                     'search_rest'  '00poprockelectronic':1 'pop':4 'rock':3 'swedish':2
                                    'search_combo'  '00poprockelectronic':10 'eight':5C 'ep':9C 'improved':7C 'johnny':2A 'mesurement':1A 'pop':13 'rock':12 'speed':6C 'spitts':4B 'swedish':11 'the':3B 'tracks':8C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['punk rock', 'punk', 'three', 'rock']
                                        'tag_date'  
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620392814.874957  (2021-05-07 15:06:54)
                             'size'  3417984