======================== unified (from filesystem) ========================
                                         'bitrate'  '267.153'
                                        'duration'  '238'
                                          'artist'  'Szymon'
                                     'text_people'  ''
                                         'release'  'Tigersapp'
                                           'title'  'Katyusha'
                                           'quals'  ("['Q-HAP-2', 'Q-BUSY-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-LOCALNESS-2', 'Q-SYN-3', 'Q-OLDST-3', 'Q-PLAY-3', 'Q-CHART-2', "
 "'Q-MIXBEAT-2', 'q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', "
 "'q-vocals-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '12'
                                            'date'  '2015'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '110.9'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Tigersapp'
'TBPM' (BPM (beats per minute))                     '110.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDOR' (Original release time)                      '2015'
'TDRC' (Recording time)                             '2015-08-21'
'TIT2' (Title/songname/content description)         'Katyusha'
'TKEY' (Initial key)                                '11A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Szymon'
'TPE2' (Band/orchestra/accompaniment)               'Szymon'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Eloper Music'
'TRCK' (Track number/Position in set)               '5/12'
'TSO2'                                              'Szymon'
'TSOP' (Performer sort order)                       'Szymon'
'TXXX:ARTISTS'                                      'Szymon'
'TXXX:MusicBrainz Album Artist Id'                  '35880ac5-ad2c-4a49-972e-3bf29851e756'
'TXXX:MusicBrainz Album Id'                         '6e290d04-a952-450c-a397-2aab508b7ebc'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '35880ac5-ad2c-4a49-972e-3bf29851e756'
'TXXX:MusicBrainz Release Group Id'                 '27945438-5708-461b-9b06-dbbe1161960e'
'TXXX:MusicBrainz Release Track Id'                 '5812c289-a50d-4f16-8265-a8e41dd561d8'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '2015'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-9.05 dB'
'TXXX:replaygain_track_peak'                        '1.043942'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd64c6f67-73db-4669-8261-fdc0f37cf8fb')

========================== row from database ==========================
                                              'id'  1534928
                                            'path'  /data/Music/Bulk/00poprockelectronic/Szymon - Tigersapp/05 Katyusha.mp3
                                         'working'  None
                                         'bitrate'  267
                                    'duration_sec'  238
                                           'genre'  electronic
                                        'filesize'  8072451
                                           'mtime'  1636916642
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 05 electronic
                                      'tag_artist'  Szymon
                                     'tag_release'  Tigersapp
                                       'tag_title'  Katyusha
                                             'bpm'  110.9
                                    'search_title'  'katyusha':1
                                   'search_artist'  'szymon':1
                                  'search_release'  'tigersapp':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':2
                                    'search_combo'  '00poprockelectronic':4 'electronic':5 'katyusha':1A 'szymon':2B 'tigersapp':3C
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-3', 'q-other-3', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  2015
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916642.2710025  (2021-11-14 20:04:02)
                             'size'  8072451