======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '273'
                                          'artist'  'A Perfect Circle'
                                     'text_people'  ''
                                         'release'  'Thirteenth Step'
                                           'title'  'Pet'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative rock', 'metal', 'alternative', 'progressive rock', 'rock']"
                                     'discogstags'  "['rock', 'alternative rock', 'prog rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive'
                                             'bpm'  '92.942'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Thirteenth Step'
'TBPM' (BPM (beats per minute))                     '92.942'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Pet'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'A Perfect Circle'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'prog rock']
'TXXX:lastfmtags'                                   ['alternative rock', 'metal', 'alternative', 'progressive rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.53 dB'
'TXXX:replaygain_track_peak'                        '0.420913'

========================== row from database ==========================
                                              'id'  1260456
                                            'path'  /data/Music/Bulk/00dwimp/A Perfect Circle/Pet.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  273
                                           'genre'  rock-cppex-progressive
                                        'filesize'  6567808
                                           'mtime'  1620735979
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp rock cppex progressive
                                      'tag_artist'  A Perfect Circle
                                     'tag_release'  Thirteenth Step
                                       'tag_title'  Pet
                                             'bpm'  92.942
                                    'search_title'  'pet':1
                                   'search_artist'  'a':1 'circle':3 'perfect':2
                                  'search_release'  'step':2 'thirteenth':1
                                     'search_rest'  '00dwimp':1 'cppex':3 'progressive':4 'rock':2
                                    'search_combo'  '00dwimp':7 'a':2B 'circle':4B 'cppex':9 'perfect':3B 'pet':1A 'progressive':10 'rock':8 'step':6C 'thirteenth':5C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'metal', 'alternative', 'progressive rock', 'rock']
                                        'tag_date'  2003
                                     'discogstags'  ['rock', 'alternative rock', 'prog rock']

============================== file details ==============================
                                           'mtime'  1620735979.2931  (2021-05-11 14:26:19)
                             'size'  6567808