======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '184'
                                          'artist'  'Rajaton'
                                     'text_people'  ''
                                         'release'  'Boundless'
                                           'title'  'The Lark in the Clear Air'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-1', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['choir', 'a cappella', 'a capella', 'finnish', 'finland']"
                                     'discogstags'  "['pop', 'vocal', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-a capella'
                                             'bpm'  '142.608'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Boundless'
'TBPM' (BPM (beats per minute))                     '142.608'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-a capella'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'The Lark in the Clear Air'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Rajaton'
'TRCK' (Track number/Position in set)               '3'
'TXXX:FMPS_Rating'                                  '0.4'
'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'                                  ['pop', 'vocal', 'ballad']
'TXXX:lastfmtags'                                   ['choir', 'a cappella', 'a capella', 'finnish', 'finland']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.05 dB'
'TXXX:replaygain_track_peak'                        '0.476566'

========================== row from database ==========================
                                              'id'  1377468
                                            'path'  /data/Music/Bulk/00poprockelectronic/Lauluyhtye Rajaton/03. The Lark in the Clear Air.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  184
                                           'genre'  ifs-songwriter-a capella
                                        'filesize'  4421903
                                           'mtime'  1628356093
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Lauluyhtye 03. ifs songwriter capella
                                      'tag_artist'  Rajaton
                                     'tag_release'  Boundless
                                       'tag_title'  The Lark in the Clear Air
                                             'bpm'  142.608
                                    'search_title'  'air':5 'clear':4 'in':3 'lark':2 'the':1
                                   'search_artist'  'rajaton':1
                                  'search_release'  'boundless':1
                                     'search_rest'  '00poprockelectronic':1 '03':3,4 'capella':7 'ifs':5 'lauluyhtye':2 'songwriter':6
                                    'search_combo'  '00poprockelectronic':8 '03':10,11 'air':5A 'boundless':7C 'capella':14 'clear':4A 'ifs':12 'in':3A 'lark':2A 'lauluyhtye':9 'rajaton':6B 'songwriter':13 'the':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['choir', 'a cappella', 'a capella', 'finnish', 'finland']
                                        'tag_date'  2001
                                     'discogstags'  ['pop', 'vocal', 'ballad']

============================== file details ==============================
                                           'mtime'  1628356092.7099175  (2021-08-07 19:08:12)
                             'size'  4421903