======================== unified (from filesystem) ========================
                                         'bitrate'  '133.851'
                                        'duration'  '387'
                                          'artist'  'Biosphere'
                                     'text_people'  ''
                                         'release'  'Patashnik'
                                           'title'  'Novelty Waves'
                                           'quals'  "['q-bass-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '12'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'im-calmer'
                                             'bpm'  '123.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Patashnik'
'TBPM' (BPM (beats per minute))                     '123.6'
'TCON' (Content type, a.k.a. Genre)                 'im-calmer'
'TDOR' (Original release time)                      '1994'
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         'Novelty Waves'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '387000'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Biosphere'
'TPE2' (Band/orchestra/accompaniment)               'Biosphere'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Apollo'
'TRCK' (Track number/Position in set)               '4/12'
'TSO2'                                              'Biosphere'
'TSOP' (Performer sort order)                       'Biosphere'
'TXXX:BARCODE'                                      '5411659169270'
'TXXX:CATALOGNUMBER'                                'AMB 3927 CD'
'TXXX:MusicBrainz Album Artist Id'                  'a5ee1ebe-a645-45d2-8319-d101fe62e581'
'TXXX:MusicBrainz Album Id'                         'fd258823-013f-3d1b-b700-e89a40c53dae'
'TXXX:MusicBrainz Album Release Country'            'NO'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a5ee1ebe-a645-45d2-8319-d101fe62e581'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.06 dB'
'TXXX:replaygain_track_peak'                        '0.721653'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'3dbe55bc-23d1-484c-8444-ad024773e350')

========================== row from database ==========================
                                              'id'  1537114
                                            'path'  /data/Music/Other/F3/Biosphere/Patashnik/04 - Novelty Waves .mp3
                                         'working'  None
                                         'bitrate'  134
                                    'duration_sec'  387
                                           'genre'  im-calmer
                                        'filesize'  6484461
                                           'mtime'  1662800262
                                   'redo_metaread'  0
                                        'rest_str'   F3 04 im calmer
                                      'tag_artist'  Biosphere
                                     'tag_release'  Patashnik
                                       'tag_title'  Novelty Waves
                                             'bpm'  123.6
                                    'search_title'  'novelty':1 'waves':2
                                   'search_artist'  'biosphere':1
                                  'search_release'  'patashnik':1
                                     'search_rest'  'calmer':3 'f3':1 'im':2
                                    'search_combo'  'biosphere':3B 'calmer':7 'f3':5 'im':6 'novelty':1A 'patashnik':4C 'waves':2A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['q-bass-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  1994
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800262.1941493  (2022-09-10 10:57:42)
                             'size'  6484461