======================== unified (from filesystem) ========================
                                         'bitrate'  '191.977'
                                        'duration'  '218'
                                          'artist'  'Moonlight vs. Azoto'
                                     'text_people'  'BY @ello-'
                                         'release'  'Flaix History, Volume 4'
                                           'title'  'San Salvador'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-2', "
 "'q-play-3', 'Q-JZFKS-3', 'Q-OLDST-1', 'q-chart-2', 'q-drums-4', 'q-other-1', "
 "'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '49'
                                      'tracktotal'  '80'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '128.008'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Flaix History, Volume 4'
'TBPM' (BPM (beats per minute))                     '128.008'
'TCOM' (Composer)                                   'BY @ello-'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'BY @ello-'
'TIT2' (Title/songname/content description)         'San Salvador'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Moonlight vs. Azoto'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Bit Music'
'TRCK' (Track number/Position in set)               '49/80'
'TSOP' (Performer sort order)                       'Moonlight vs. Azoto'
'TXXX:ALBUMARTISTSORT'                              'Various Artists'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '497e5b1c-c149-4dc4-8d75-e9b992dba1ef'
'TXXX:MusicBrainz Album Release Country'            'ES'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '5bdcffd1-40d9-4348-86fc-685e4e770cc6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:added_timestamp'                              '128930990202923527'
'TXXX:lastfmtags'                                   'house'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.80 dB'
'TXXX:replaygain_track_peak'                        '0.345734'

========================== row from database ==========================
                                              'id'  1315231
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/09 Moonlight VS Azoto - San Salvador.mp3
                                         'working'  None
                                         'bitrate'  191
                                    'duration_sec'  218
                                           'genre'  prerock-jb-blues
                                        'filesize'  5242543
                                           'mtime'  1620403805
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 09 VS prerock jb blues
                                      'tag_artist'  Moonlight vs. Azoto
                                     'tag_release'  Flaix History, Volume 4
                                       'tag_title'  San Salvador
                                             'bpm'  128.008
                                    'search_title'  'salvador':2 'san':1
                                   'search_artist'  'azoto':4 'moonlight':1 'vs':2,3
                                  'search_release'  '4':5 'flaix':1 'history':2,3 'volume':4
                                     'search_rest'  '00poprockelectronic':1 'blues':10 'files':5,6 'jb':9 'loose':3,4 'prerock':8 'unsorted':2 'vs':7
                                    'search_combo'  '00poprockelectronic':12 '4':11C 'azoto':6B 'blues':21 'files':16,17 'flaix':7C 'history':8C,9C 'jb':20 'loose':14,15 'moonlight':3B 'prerock':19 'salvador':2A 'san':1A 'unsorted':13 'volume':10C 'vs':4B,5B,18
                                    'tag_tracknum'  49
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['house']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620403805.0117657  (2021-05-07 18:10:05)
                             'size'  5242543