======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '199'
                                          'artist'  'Junius'
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                                         'release'  'Eternal Rituals for the Accretion of Light'
                                           'title'  'Heresy of the Free Spirit'
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                                      'lastfmtags'  "['alternative rock', 'progressive rock', 'indie', 'space rock', 'post rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '10'
                                            'date'  '2017'
                                        'comments'  ''
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                                        'acoustid'  'c78272fa-ae68-456e-8f7a-4f3614a7a277'
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======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Eternal Rituals for the Accretion of Light'
'TBPM' (BPM (beats per minute))                     '128.658'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-progressive'
'TDOR' (Original release time)                      '2017'
'TDRC' (Recording time)                             '2017'
'TIT2' (Title/songname/content description)         'Heresy of the Free Spirit'
'TKEY' (Initial key)                                '6A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Junius'
'TPE2' (Band/orchestra/accompaniment)               'Junius'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Prosthetic Records'
'TRCK' (Track number/Position in set)               '9/10'
'TSO2'                                              'Junius'
'TSOP' (Performer sort order)                       'Junius'
'TSRC' (ISRC (international standard recording code))  'USERN1009484'
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'TXXX:Acoustid Id'                                  'c78272fa-ae68-456e-8f7a-4f3614a7a277'
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'TXXX:CATALOGNUMBER'                                'PRO5102752'
'TXXX:MusicBrainz Album Artist Id'                  'ccccfe4b-2958-46f3-b5eb-f1d08fc58e4a'
'TXXX:MusicBrainz Album Id'                         '7e208725-7c06-472a-ad83-d424c0a33587'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'ccccfe4b-2958-46f3-b5eb-f1d08fc58e4a'
'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'                                   ['alternative rock', 'progressive rock', 'indie', 'space rock', 'post rock']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.58 dB'
'TXXX:replaygain_track_peak'                        '0.372841'
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========================== row from database ==========================
                                              'id'  1411713
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/junius - eternal rituals for the accretion of light (2017)/109. heresy of the free spirit.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  199
                                           'genre'  rock-cppex-progressive
                                        'filesize'  8088181
                                           'mtime'  1620737773
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy junius eternal rituals accretion light (2017) 109. heresy free spirit rock cppex progressive
                                      'tag_artist'  Junius
                                     'tag_release'  Eternal Rituals for the Accretion of Light
                                       'tag_title'  Heresy of the Free Spirit
                                             'bpm'  128.658
                                    'search_title'  'free':4 'heresy':1 'of':2 'spirit':5 'the':3
                                   'search_artist'  'junius':1
                                  'search_release'  'accretion':5 'eternal':1 'for':3 'light':7 'of':6 'rituals':2 'the':4
                                     'search_rest'  '109':9,10 '2017':7,8 'accretion':5 'classicprogpsy':1 'cppex':15 'eternal':3 'free':12 'heresy':11 'junius':2 'light':6 'progressive':16 'rituals':4 'rock':14 'spirit':13
                                    'search_combo'  '109':22,23 '2017':20,21 'accretion':11C,18 'classicprogpsy':14 'cppex':28 'eternal':7C,16 'for':9C 'free':4A,25 'heresy':1A,24 'junius':6B,15 'light':13C,19 'of':2A,12C 'progressive':29 'rituals':8C,17 'rock':27 'spirit':5A,26 'the':3A,10C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'progressive rock', 'indie', 'space rock', 'post rock']
                                        'tag_date'  2017
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620737773.4656796  (2021-05-11 14:56:13)
                             'size'  8088181