======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '274'
                                          'artist'  'Dan Armeanca & Fanfare Ciocarlia'
                                     'text_people'  ''
                                         'release'  'Suburban Bucharest: Mahala Sounds From Romania'
                                           'title'  'Iag Bari'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['balkan', 'gypsy', 'folk', 'brass', 'world']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '18'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'loc-romania'
                                             'bpm'  '91.226'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000B1A 00000B46 00004204'
'COMM:iTunNORM:eng'                                 (' 00000B1A 00000B46 00004204 000048CC 000284A0 000371B9 00008000 00008000 '
 '00003626 00001298')
'TALB' (Album/Movie/Show title)                     'Suburban Bucharest: Mahala Sounds From Romania'
'TBPM' (BPM (beats per minute))                     '91.226'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-romania'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Iag Bari'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dan Armeanca & Fanfare Ciocarlia'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists / Various Artists'
'TRCK' (Track number/Position in set)               '1/18'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['balkan', 'gypsy', 'folk', 'brass', 'world']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+7.87 dB'
'TXXX:replaygain_track_peak'                        '0.193736'

========================== row from database ==========================
                                              'id'  284665
                                            'path'  /data/Music/Bulk/00localcharacter/suburban bucharest_ mahala sounds from r/01 Iag Bari.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  274
                                           'genre'  loc-romania
                                        'filesize'  4528128
                                           'mtime'  1621627287
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter suburban bucharest_ mahala sounds from 01 loc romania
                                      'tag_artist'  Dan Armeanca & Fanfare Ciocarlia
                                     'tag_release'  Suburban Bucharest: Mahala Sounds From Romania
                                       'tag_title'  Iag Bari
                                             'bpm'  91.226
                                    'search_title'  'bari':2 'iag':1
                                   'search_artist'  'armeanca':2 'ciocarlia':4 'dan':1 'fanfare':3
                                  'search_release'  'bucharest':2,3 'from':6 'mahala':4 'romania':7 'sounds':5 'suburban':1
                                     'search_rest'  'bucharest':2 'from':5 'loc':6 'mahala':3 'romania':7 'sounds':4 'suburban':1
                                    'search_combo'  'armeanca':4B 'bari':2A 'bucharest':8C,9C,15 'ciocarlia':6B 'dan':3B 'fanfare':5B 'from':12C,18 'iag':1A 'loc':19 'mahala':10C,16 'romania':13C,20 'sounds':11C,17 'suburban':7C,14
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['balkan', 'gypsy', 'folk', 'brass', 'world']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627287.2694662  (2021-05-21 22:01:27)
                             'size'  4528128