======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '301'
                                          'artist'  'Clarion'
                                     'text_people'  ''
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                                           'title'  'R.I.P. (Requiescant in pacem)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
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 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['post-ambient emotional hardcore', '8 of 10 stars', 'progressive rock', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '103'
                                             'key'  '1A'
                                        'acoustid'  '031a54d6-43b5-4f1b-a868-211b7dbd61cf'
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Zarathustra's Revenge"
'TBPM' (BPM (beats per minute))                     '103'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'R.I.P. (Requiescant in pacem)'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Clarion'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/4'
'TPUB' (Publisher)                                  'Mellow Records'
'TRCK' (Track number/Position in set)               '1/12'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Clarion'
'TXXX:Acoustid Id'                                  '031a54d6-43b5-4f1b-a868-211b7dbd61cf'
'TXXX:Artists'                                      'Clarion'
'TXXX:CATALOGNUMBER'                                'MMP 328 A/B/C/D'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '06594af9-7b03-4523-9e1b-276d351f7a28'
'TXXX:MusicBrainz Album Release Country'            'IT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '90a5bc7d-adaa-44fd-bb79-24c5cb9473d7'
'TXXX:MusicBrainz Release Group Id'                 '0de2360b-8773-4586-9239-d4f53bb26c1b'
'TXXX:MusicBrainz Release Track Id'                 '0d4eb3c4-4ba5-3aa8-b297-1f188508d3a1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['post-ambient emotional hardcore',
 '8 of 10 stars',
 'progressive rock',
 'rock progressivo italiano']
'TXXX:originalyear'                                 '1997'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.423671'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8ac58597-5de0-4e1a-a458-305daba8b4cd')

========================== row from database ==========================
                                              'id'  1498706
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Algebra - Italian Prog Tribute/cd 2/Zarathustra_s_Revenge_-_Italian_Prog_Tribute_Box_Set_-_201_-_Clarion_(Italy)_-R.I.P._(Requiescant_In_Pace)_(Banco).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  301
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  9645965
                                           'mtime'  1620736019
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Algebra Italian Prog Tribute cd 2 Zarathustra_s_Revenge_ _Italian_Prog_Tribute_Box_Set_ _201_ _Clarion_(Italy)_ R.I.P._(Requiescant_In_Pace)_(Banco) rock cppex progressive;set pl progspace
                                      'tag_artist'  Clarion
                                     'tag_release'  Zarathustra's Revenge
                                       'tag_title'  R.I.P. (Requiescant in pacem)
                                             'bpm'  103.0
                                    'search_title'  'i':2 'in':7 'p':3 'pacem':8,9 'r':1 'requiescant':5,6 'rip':4
                                   'search_artist'  'clarion':1
                                  'search_release'  'revenge':4 's':2 'zarathustra':1 'zarathustras':3
                                     'search_rest'  '2':7 '201':16 'algebra':2 'banco':27,32 'box':14 'cd':6 'clarion':17,19 'classicprogpsy':1 'cppex':34 'i':22 'in':25,30 'italian':3,11 'italy':18,20 'p':23 'pace':26,31 'pl':39 'prog':4,12 'progressive':35,37 'progspace':40 'r':21 'requiescant':24,29 'revenge':10 'rip':28 'rock':33 's':9 'set':15,36,38 'tribute':5,13 'zarathustra':8
                                    'search_combo'  '2':21 '201':30 'algebra':16 'banco':41,46 'box':28 'cd':20 'clarion':10B,31,33 'classicprogpsy':15 'cppex':48 'i':2A,36 'in':7A,39,44 'italian':17,25 'italy':32,34 'p':3A,37 'pace':40,45 'pacem':8A,9A 'pl':53 'prog':18,26 'progressive':49,51 'progspace':54 'r':1A,35 'requiescant':5A,6A,38,43 'revenge':14C,24 'rip':4A,42 'rock':47 's':12C,23 'set':29,50,52 'tribute':19,27 'zarathustra':11C,22 'zarathustras':13C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', '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-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['post-ambient emotional hardcore', '8 of 10 stars', 'progressive rock', 'rock progressivo italiano']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736018.851709  (2021-05-11 14:26:58)
                             'size'  9645965