======================== unified (from filesystem) ========================
                                         'bitrate'  '199.043'
                                        'duration'  '274'
                                          'artist'  'God Is An Astronaut'
                                     'text_people'  ''
                                         'release'  'All Is Violent, All Is Bright'
                                           'title'  'Fragile'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-3', "
 "'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'post rock', 'experimental', 'ambient']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock;set-pl-sced'
                                             'bpm'  '144.438'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00001708 0000179A 00006783'
'COMM:iTunNORM:eng'                                 (' 00001708 0000179A 00006783 00007CD2 0003788B 0003580A 00008000 00008000 '
 '0003580A 0002B5B2')
'TALB' (Album/Movie/Show title)                     'All Is Violent, All Is Bright'
'TBPM' (BPM (beats per minute))                     '144.438'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock', 'set-pl-sced']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Fragile'
'TKEY' (Initial key)                                '11A'
'TLAN' (Language(s))                                'English'
'TPE1' (Lead performer(s)/Soloist(s))               'God Is An Astronaut'
'TPE2' (Band/orchestra/accompaniment)               'God Is An Astronaut'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['instrumental', 'post rock', 'experimental', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.323843'

========================== row from database ==========================
                                              'id'  1362921
                                            'path'  /data/Music/Bulk/00poprockelectronic/God Is An Astronaut/[2005] All Is Violent, All Is Bright/01 Fragile.mp3
                                         'working'  None
                                         'bitrate'  199
                                    'duration_sec'  274
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock;set-pl-sced
                                        'filesize'  6849401
                                           'mtime'  1620353223
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2005] 01 loc asia japan;loc asia japan jrock;set pl sced
                                      'tag_artist'  God Is An Astronaut
                                     'tag_release'  All Is Violent, All Is Bright
                                       'tag_title'  Fragile
                                             'bpm'  144.438
                                    'search_title'  'fragile':1
                                   'search_artist'  'an':3 'astronaut':4 'god':1 'is':2
                                  'search_release'  'all':1 'bright':5 'is':2 'violent':3,4
                                     'search_rest'  '00poprockelectronic':1 '2005':2,3 'asia':5 'japan':6,8,10 'jrock':11,13 'loc':4,7,9 'pl':15 'sced':16 'set':12,14
                                    'search_combo'  '00poprockelectronic':11 '2005':12,13 'all':6C 'an':4B 'asia':15 'astronaut':5B 'bright':10C 'fragile':1A 'god':2B 'is':3B,7C 'japan':16,18,20 'jrock':21,23 'loc':14,17,19 'pl':25 'sced':26 'set':22,24 'violent':8C,9C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'post rock', 'experimental', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620353222.9412344  (2021-05-07 04:07:02)
                             'size'  6849401