======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '274'
                                          'artist'  'Ephemeral Mists'
                                     'text_people'  ''
                                         'release'  'My Own Collection (By Blixe)'
                                           'title'  'Ra'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['psychill', 'psybient', 'new age', 'ambient', 'downtempo', 'chill']"
                                     'discogstags'  "['electronic', 'downtempo', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '49'
                                      'tracktotal'  '74'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-psychill'
                                             'bpm'  '120.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'My Own Collection (By Blixe)'
'TBPM' (BPM (beats per minute))                     '120.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-psychill'
'TIT2' (Title/songname/content description)         'Ra'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ephemeral Mists'
'TRCK' (Track number/Position in set)               '49/74'
'TXXX:PZTagEditor Info'                             'This tag done at 21.11.2003 12:35:24. Version 1.5.440.10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'downtempo', 'ambient']
'TXXX:lastfmtags'                                   ['psychill', 'psybient', 'new age', 'ambient', 'downtempo', 'chill']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.57 dB'
'TXXX:replaygain_track_peak'                        '0.562709'

========================== row from database ==========================
                                              'id'  1370706
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/Ephemeral Mists - tracks/Ephemeral Mists - Ra.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  274
                                           'genre'  electronic-psychill
                                        'filesize'  6706560
                                           'mtime'  1636912203
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient tracks electronic psychill
                                      'tag_artist'  Ephemeral Mists
                                     'tag_release'  My Own Collection (By Blixe)
                                       'tag_title'  Ra
                                             'bpm'  120.1
                                    'search_title'  'ra':1
                                   'search_artist'  'ephemeral':1 'mists':2
                                  'search_release'  'blixe':6,7 'by':4,5 'collection':3 'my':1 'own':2
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 'electronic':4 'psychill':5 'tracks':3
                                    'search_combo'  '00ambient':12 '00poprockelectronic':11 'blixe':9C,10C 'by':7C,8C 'collection':6C 'electronic':14 'ephemeral':2B 'mists':3B 'my':4C 'own':5C 'psychill':15 'ra':1A 'tracks':13
                                    'tag_tracknum'  49
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-3', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psychill', 'psybient', 'new age', 'ambient', 'downtempo', 'chill']
                                        'tag_date'  
                                     'discogstags'  ['electronic', 'downtempo', 'ambient']

============================== file details ==============================
                                           'mtime'  1636912202.6203566  (2021-11-14 18:50:02)
                             'size'  6706560