======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '122'
                                          'artist'  'The Rosenberg Trio'
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                                         'release'  'Seresta'
                                           'title'  "Wasso's Waltz"
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                                      'lastfmtags'  "['guitar', 'gypsy jazz', 'jazz', 'jazz manouche', 'gypsy']"
                                     'discogstags'  "['jazz', 'gypsy jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '21'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '114.028'
                                             'key'  '10A'
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '114.028'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         "Wasso's Waltz"
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Rosenberg Trio'
'TPE2' (Band/orchestra/accompaniment)               'The Rosenberg Trio'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Hot Club Records'
'TRCK' (Track number/Position in set)               '3/21'
'TSO2'                                              'Rosenberg Trio, The'
'TSOP' (Performer sort order)                       'Rosenberg Trio, The'
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'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
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'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['jazz', 'gypsy jazz']
'TXXX:lastfmtags'                                   ['guitar', 'gypsy jazz', 'jazz', 'jazz manouche', 'gypsy']
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'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
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'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.43 dB'
'TXXX:replaygain_track_peak'                        '0.782672'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The Rosenberg Trio - Rosenberg Trio/Hot Club Records Vintage Guitar Series Volume 8/Rosenberg Trio - Wasso_s Walz.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  122
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  1961072
                                           'mtime'  1620536668
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Hot Club Records Vintage Guitar Series Volume 8 Wasso_s Walz prerock jb jazz unsorted
                                      'tag_artist'  The Rosenberg Trio
                                     'tag_release'  Seresta
                                       'tag_title'  Wasso's Waltz
                                             'bpm'  114.028
                                    'search_title'  's':2 'waltz':4 'wasso':1 'wassos':3
                                   'search_artist'  'rosenberg':2 'the':1 'trio':3
                                  'search_release'  'seresta':1
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                                    'search_combo'  '8':20 'club':14 'country':12 'exotica':10 'guitar':17 'hot':13 'jazz':9 'jb':25 'oldies':11 'prerock':24 'records':15 'rosenberg':6B 's':2A,22 'seresta':8C 'series':18 'the':5B 'trio':7B 'unsorted':26 'vintage':16 'volume':19 'waltz':4A 'walz':23 'wasso':1A,21 'wassos':3A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['guitar', 'gypsy jazz', 'jazz', 'jazz manouche', 'gypsy']
                                        'tag_date'  2009
                                     'discogstags'  ['jazz', 'gypsy jazz']

============================== file details ==============================
                                           'mtime'  1620536668.1855266  (2021-05-09 07:04:28)
                             'size'  1961072