======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '107'
                                          'artist'  'Ólafur Arnalds'
                                     'text_people'  ''
                                         'release'  'Found Songs'
                                           'title'  'Romance'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'Q-PLAY-3', 'q-syn-3', 'q-bass-1', 'q-busy-2', 'q-grit-1', "
 "'Q-PIANO-4', 'q-chart-4', 'q-drums-1', 'q-other-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'icelandic', 'post rock', 'classical', 'ambient']"
                                     'discogstags'  "['classical', 'instrumental', 'neo-classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '7'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '99'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::XXX'                                         '0'
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000000EF 00000202 00000C09 000039F0 0000F70A 00002E1F 00005F89 00008044 '
 '00012734 000040E5')
'COMM:iTunPGAP:eng'                                 '0/'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000089E 0000000000485852 00000000 0027514F 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Found Songs'
'TBPM' (BPM (beats per minute))                     '99'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009-04-19'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Romance'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Ólafur Arnalds'
'TPE2' (Band/orchestra/accompaniment)               'Ólafur Arnalds'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Erased Tapes Records'
'TRCK' (Track number/Position in set)               '3/7'
'TSO2'                                              'Arnalds, Ólafur'
'TSOP' (Performer sort order)                       'Arnalds, Ólafur'
'TXXX:Artists'                                      'Ólafur Arnalds'
'TXXX:CATALOGNUMBER'                                'ERATP017'
'TXXX:MusicBrainz Album Artist Id'                  '6655955b-1c1e-4bcb-84e4-81bcd9efab30'
'TXXX:MusicBrainz Album Id'                         '705de6f0-e4a1-4d0e-bef7-eeae4f5115b5'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'ep'
'TXXX:MusicBrainz Artist Id'                        '6655955b-1c1e-4bcb-84e4-81bcd9efab30'
'TXXX:MusicBrainz Release Group Id'                 '47fe472d-fc2a-3aa2-a676-51916087957d'
'TXXX:MusicBrainz Release Track Id'                 '554f8e01-0962-3ee8-bac5-27d4af8543a4'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['classical', 'instrumental', 'neo-classical']
'TXXX:lastfmtags'                                   ['instrumental', 'icelandic', 'post rock', 'classical', 'ambient']
'TXXX:originalyear'                                 '2009'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.86 dB'
'TXXX:replaygain_track_peak'                        '0.842225'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f6433228-d43e-4153-92fe-2cefd3f8a3d0')

========================== row from database ==========================
                                              'id'  1348463
                                            'path'  /data/Music/Bulk/00poprockelectronic/00calmer/Ólafur Arnalds/Found Songs/day-iii_romance.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  107
                                           'genre'  electronic
                                        'filesize'  2694396
                                           'mtime'  1636913622
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00calmer day iii_romance electronic
                                      'tag_artist'  Ólafur Arnalds
                                     'tag_release'  Found Songs
                                       'tag_title'  Romance
                                             'bpm'  99.0
                                    'search_title'  'romance':1
                                   'search_artist'  'arnalds':3 'olafur':1,2
                                  'search_release'  'found':1 'songs':2
                                     'search_rest'  '00calmer':2 '00poprockelectronic':1 'day':3 'electronic':6 'iii':4 'romance':5
                                    'search_combo'  '00calmer':8 '00poprockelectronic':7 'arnalds':4B 'day':9 'electronic':12 'found':5C 'iii':10 'olafur':2B,3B 'romance':1A,11 'songs':6C
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-4', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'icelandic', 'post rock', 'classical', 'ambient']
                                        'tag_date'  2009
                                     'discogstags'  ['classical', 'instrumental', 'neo-classical']

============================== file details ==============================
                                           'mtime'  1636913621.5410354  (2021-11-14 19:13:41)
                             'size'  2694396