======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '560'
                                          'artist'  'The Re-Stoned'
                                     'text_people'  ''
                                         'release'  'Analog'
                                           'title'  'Crystals'
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                                      'lastfmtags'  "['russian', 'stoner rock', 'psychedelic rock', 'psychedelic', 'stoner']"
                                     'discogstags'  "['psychedelic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '7'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'rock-cppex-psychedelic'
                                             'bpm'  '145.3'
                                             'key'  '5A'
                                        'acoustid'  'a01d4348-9510-46ef-b85a-9999594551af'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TBPM' (BPM (beats per minute))                     '145.3'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-psychedelic'
'TDOR' (Original release time)                      '2011'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Crystals'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Re-Stoned'
'TPE2' (Band/orchestra/accompaniment)               'The Re-Stoned'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'R.A.I.G.'
'TRCK' (Track number/Position in set)               '4/7'
'TSO2'                                              'Re-Stoned, The'
'TSOP' (Performer sort order)                       'Re-Stoned, The'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.83.01, LAME dll 3.93, 320 Kbit/s, Stereo, High quality'
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'TXXX:Artists'                                      'The Re-Stoned'
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'TXXX:MusicBrainz Album Id'                         '46b682ff-3129-4115-8977-93aba7b91fac'
'TXXX:MusicBrainz Album Release Country'            'RU'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a2733c67-495c-4ebb-a901-f156f0f6927d'
'TXXX:MusicBrainz Release Group Id'                 '7776e534-25b9-450f-9bc1-960e8a342b4e'
'TXXX:MusicBrainz Release Track Id'                 'b8fe7dd0-6ad9-3db2-a841-55abf2910226'
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'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'                                  ['psychedelic rock', 'rock']
'TXXX:lastfmtags'                                   ['russian', 'stoner rock', 'psychedelic rock', 'psychedelic', 'stoner']
'TXXX:originalyear'                                 '2011'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '+0.20 dB'
'TXXX:replaygain_track_peak'                        '0.360944'
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========================== row from database ==========================
                                              'id'  1416426
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/The Re-Stoned - re-stoned_analog/04 Crystals.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  560
                                           'genre'  rock-cppex-psychedelic
                                        'filesize'  22767714
                                           'mtime'  1620737180
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy re stoned_analog 04 rock cppex psychedelic
                                      'tag_artist'  The Re-Stoned
                                     'tag_release'  Analog
                                       'tag_title'  Crystals
                                             'bpm'  145.3
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                                   'search_artist'  're':2 'restoned':4 'stoned':3 'the':1
                                  'search_release'  'analog':1
                                     'search_rest'  'analog':4 'classicprogpsy':1 'cppex':6 'psychedelic':7 're':2 'rock':5 'stoned':3
                                    'search_combo'  'analog':6C,10 'classicprogpsy':7 'cppex':12 'crystals':1A 'psychedelic':13 're':3B,8 'restoned':5B 'rock':11 'stoned':4B,9 'the':2B
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['russian', 'stoner rock', 'psychedelic rock', 'psychedelic', 'stoner']
                                        'tag_date'  2011
                                     'discogstags'  ['psychedelic rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620737180.3142848  (2021-05-11 14:46:20)
                             'size'  22767714