======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '395'
                                          'artist'  'Vespero'
                                     'text_people'  ''
                                         'release'  'Surpassing All Kings'
                                           'title'  'Glide (Like a Swan)'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['russian', 'progressive rock', 'space rock', 'psychedelic rock', 'krautrock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '7'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic-space;set-pl-progspace'
                                             'bpm'  '99.7'
                                             'key'  '9A'
                                        'acoustid'  '606b39df-02b9-4e62-8c6a-555a6c670709'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Surpassing All Kings'
'TBPM' (BPM (beats per minute))                     '99.7'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-psychedelic-space', 'set-pl-progspace']
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009-06-05'
'TIT2' (Title/songname/content description)         'Glide (Like a Swan)'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Vespero'
'TPE2' (Band/orchestra/accompaniment)               'Vespero'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'R.A.I.G.'
'TRCK' (Track number/Position in set)               '6/7'
'TSO2'                                              'Vespero'
'TSOP' (Performer sort order)                       'Vespero'
'TXXX:Acoustid Id'                                  '606b39df-02b9-4e62-8c6a-555a6c670709'
'TXXX:Artists'                                      'Vespero'
'TXXX:CATALOGNUMBER'                                'R041'
'TXXX:MusicBrainz Album Artist Id'                  '2fe8d7bc-5c4e-44a4-840c-a9603739870a'
'TXXX:MusicBrainz Album Id'                         '8c1fc6be-7398-4d31-afc1-344d99161c6f'
'TXXX:MusicBrainz Album Release Country'            'RU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '2fe8d7bc-5c4e-44a4-840c-a9603739870a'
'TXXX:MusicBrainz Release Group Id'                 'bf5a3365-1894-4e5c-91b9-81d6e156653a'
'TXXX:MusicBrainz Release Track Id'                 '27f25c38-651e-3b7c-b655-a1a5230e3c92'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['russian', 'progressive rock', 'space rock', 'psychedelic rock', 'krautrock']
'TXXX:originalyear'                                 '2009'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+12.57 dB'
'TXXX:replaygain_track_peak'                        '0.129716'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9e577d88-5900-44d0-a9b4-dd049e0fa344')

========================== row from database ==========================
                                              'id'  1415210
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/vespero - surpassing all kings/06 Glide (Like a Swan).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  395
                                           'genre'  rock-cppex-psychedelic-space;set-pl-progspace
                                        'filesize'  15923421
                                           'mtime'  1620736238
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy vespero surpassing all kings 06 rock cppex psychedelic space;set pl progspace
                                      'tag_artist'  Vespero
                                     'tag_release'  Surpassing All Kings
                                       'tag_title'  Glide (Like a Swan)
                                             'bpm'  99.7
                                    'search_title'  'a':4 'glide':1 'like':2,3 'swan':5,6
                                   'search_artist'  'vespero':1
                                  'search_release'  'all':2 'kings':3 'surpassing':1
                                     'search_rest'  'all':4 'classicprogpsy':1 'cppex':7 'kings':5 'pl':13 'progspace':14 'psychedelic':8 'rock':6 'set':10,12 'space':9,11 'surpassing':3 'vespero':2
                                    'search_combo'  'a':4A 'all':9C,14 'classicprogpsy':11 'cppex':17 'glide':1A 'kings':10C,15 'like':2A,3A 'pl':23 'progspace':24 'psychedelic':18 'rock':16 'set':20,22 'space':19,21 'surpassing':8C,13 'swan':5A,6A 'vespero':7B,12
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'progressive rock', 'space rock', 'psychedelic rock', 'krautrock']
                                        'tag_date'  2009
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736237.6049094  (2021-05-11 14:30:37)
                             'size'  15923421