======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '162'
                                          'artist'  'William Mullaley'
                                     'text_people'  ''
                                         'release'  'The Secret Museum of Mankind, Volume 4: Ethnic Music Classics 1925-48'
                                           'title'  'Tory Island Reel'
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                                      'lastfmtags'  "['ireland', 'accordion', 'british isles', 'concertina', 'celtic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '24'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '105.313'
                                             'key'  '9B'
                                        'acoustid'  '37e87de7-83f9-498d-bd64-76add1a7f46c'
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '105.313'
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'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997-02-28'
'TIT2' (Title/songname/content description)         'Tory Island Reel'
'TKEY' (Initial key)                                '9B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'William Mullaley'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Yazoo Records'
'TRCK' (Track number/Position in set)               '13/24'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Mullaley, William'
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'TXXX:BARCODE'                                      '016351701022'
'TXXX:CATALOGNUMBER'                                'YAZOO 7010'
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'TXXX:MusicBrainz Album Id'                         '7e2503e7-77c6-429a-87e6-327f11014881'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '0f4879d2-9d41-422a-bfc0-8b43cfa0dfce'
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'TXXX:Q-LOCALNESS'                                  '3'
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'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['ireland', 'accordion', 'british isles', 'concertina', 'celtic']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.33 dB'
'TXXX:replaygain_track_peak'                        '0.455657'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00localcharacter/the secret museum of mankind vol. 4 (ethnic music classics 1925-48)/13 - eire_ tory island reel - william mullaley.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  162
                                           'genre'  loc-unsorted
                                        'filesize'  2609008
                                           'mtime'  1621629934
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter the secret museum mankind vol. (ethnic music classics 48) 13 eire_ tory island reel william mullaley loc unsorted
                                      'tag_artist'  William Mullaley
                                     'tag_release'  The Secret Museum of Mankind, Volume 4: Ethnic Music Classics 1925-48
                                       'tag_title'  Tory Island Reel
                                             'bpm'  105.313
                                    'search_title'  'island':2 'reel':3 'tory':1
                                   'search_artist'  'mullaley':2 'william':1
                                  'search_release'  '1925':13 '192548':15 '4':8,9 '48':14 'classics':12 'ethnic':10 'mankind':5,6 'museum':3 'music':11 'of':4 'secret':2 'the':1 'volume':7
                                     'search_rest'  '48':11,12 'classics':10 'eire':13 'ethnic':7,8 'island':15 'loc':19 'mankind':4 'mullaley':18 'museum':3 'music':9 'reel':16 'secret':2 'the':1 'tory':14 'unsorted':20 'vol':5,6 'william':17
                                    'search_combo'  '1925':18C '192548':20C '4':13C,14C '48':19C,31,32 'classics':17C,30 'eire':33 'ethnic':15C,27,28 'island':2A,35 'loc':39 'mankind':10C,11C,24 'mullaley':5B,38 'museum':8C,23 'music':16C,29 'of':9C 'reel':3A,36 'secret':7C,22 'the':6C,21 'tory':1A,34 'unsorted':40 'vol':25,26 'volume':12C 'william':4B,37
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['ireland', 'accordion', 'british isles', 'concertina', 'celtic']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629933.5653152  (2021-05-21 22:45:33)
                             'size'  2609008