======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '166'
                                          'artist'  'Loiutma'
                                     'text_people'  ''
                                         'release'  'Things of beauty'
                                           'title'  "Ievan Polkka (Leva's polka)"
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['folk', 'finnish', 'finnish folk', 'nordic folk', 'kantele']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '109.943'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Things of beauty'
'TBPM' (BPM (beats per minute))                     '109.943'
'TCMP'                                              '0'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         "Ievan Polkka (Leva's polka)"
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Loiutma'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '10'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['folk', 'finnish', 'finnish folk', 'nordic folk', 'kantele']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'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'                        '+1.14 dB'
'TXXX:replaygain_track_peak'                        '0.874899'

========================== row from database ==========================
                                              'id'  1538917
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/10. Loituma - Ievan Polkka (Leva_s polka).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  166
                                           'genre'  loc-unsorted
                                        'filesize'  2675888
                                           'mtime'  1620400458
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 10. Loituma (Leva_s loc unsorted
                                      'tag_artist'  Loiutma
                                     'tag_release'  Things of beauty
                                       'tag_title'  Ievan Polkka (Leva's polka)
                                             'bpm'  109.943
                                    'search_title'  'ievan':1 'leva':3 'levas':5 'polka':6,7 'polkka':2 's':4
                                   'search_artist'  'loiutma':1
                                  'search_release'  'beauty':3 'of':2 'things':1
                                     'search_rest'  '00mid':1 '10':4,5 'europe':3 'leva':7,9 'loc':11 'loituma':6 'north':2 's':8,10 'unsorted':12
                                    'search_combo'  '00mid':12 '10':15,16 'beauty':11C 'europe':14 'ievan':1A 'leva':3A,18,20 'levas':5A 'loc':22 'loituma':17 'loiutma':8B 'north':13 'of':10C 'polka':6A,7A 'polkka':2A 's':4A,19,21 'things':9C 'unsorted':23
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['folk', 'finnish', 'finnish folk', 'nordic folk', 'kantele']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620400458.2522025  (2021-05-07 17:14:18)
                             'size'  2675888