======================== unified (from filesystem) ========================
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                                        'duration'  '123'
                                          'artist'  'Goldmund'
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                                      'lastfmtags'  "['contemporary classical', 'instrumental', 'piano', 'minimal', 'ambient']"
                             'musicbrainz_albumid'  ''
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                                     'tracknumber'  '2'
                                      'tracktotal'  '6'
                                            'date'  '2006'
                                        'comments'  ''
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                                             'key'  '12A'
                                        'acoustid'  '368356a7-1523-474c-8a35-4c160982acc7'
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======================== rawer (from filesystem) ========================

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'TBPM' (BPM (beats per minute))                     '98'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments-contemporary'
'TCOP' (Copyright message)                          'Collection_by_Vano'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-10-02'
'TIT2' (Title/songname/content description)         'Heavenfallen'
'TKEY' (Initial key)                                '12A'
'TMED' (Media type)                                 '7" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Goldmund'
'TPE2' (Band/orchestra/accompaniment)               'Goldmund'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Type'
'TRCK' (Track number/Position in set)               '2/6'
'TSO2'                                              'Goldmund'
'TSOP' (Performer sort order)                       'Goldmund'
'TXXX:Acoustid Id'                                  '368356a7-1523-474c-8a35-4c160982acc7'
'TXXX:Artists'                                      'Goldmund'
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'TXXX:MusicBrainz Album Id'                         '90ab87e2-3340-47ea-8f2c-5f9da5900fd2'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'ep'
'TXXX:MusicBrainz Artist Id'                        '6ea0f255-4920-44e4-89ff-586c27b219a0'
'TXXX:MusicBrainz Release Group Id'                 '38b4c9ad-6bcd-3855-9538-c801387dc355'
'TXXX:MusicBrainz Release Track Id'                 'b9fe5aef-92c6-3c6b-93fa-972383063a93'
'TXXX:PZTagEditor Info'                             'This tag done with PZ TagEditor at 03.12.2009 1:36:31. Version 5.1.804.19'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['contemporary classical', 'instrumental', 'piano', 'minimal', 'ambient']
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.90 dB'
'TXXX:replaygain_track_peak'                        '0.620001'
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========================== row from database ==========================
                                              'id'  1357752
                                            'path'  /data/Music/Bulk/00instruments-classical/Goldmund - The Heart Of High Places [2006]/02 Goldmund - Heavenfallen.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  123
                                           'genre'  prerock-classical or classical instruments-contemporary
                                        'filesize'  4951687
                                           'mtime'  1637329792
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical Of [2006] 02 prerock classical or classical instruments contemporary
                                      'tag_artist'  Goldmund
                                     'tag_release'  The Heart of High Places
                                       'tag_title'  Heavenfallen
                                             'bpm'  98.0
                                    'search_title'  'heavenfallen':1
                                   'search_artist'  'goldmund':1
                                  'search_release'  'heart':2 'high':4 'of':3 'places':5 'the':1
                                     'search_rest'  '00instruments':1 '2006':4,5 'classical':2 'contemporary':9 'instruments':8 'of':3 'or':7 'prerock':6
                                    'search_combo'  '00instruments':8 '2006':11,12 'classical':9 'contemporary':16 'goldmund':2B 'heart':4C 'heavenfallen':1A 'high':6C 'instruments':15 'of':5C,10 'or':14 'places':7C 'prerock':13 'the':3C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['contemporary classical', 'instrumental', 'piano', 'minimal', 'ambient']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329792.3894193  (2021-11-19 14:49:52)
                             'size'  4951687