======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '220'
                                          'artist'  'Doc and Arnold Watson'
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                                         'release'  'Friends of Old Time Music: The Folk Arrival, 1961-1965'
                                           'title'  'Short Life of Trouble'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '19'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'loc-namerica'
                                             'bpm'  '114.5'
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rest: ''

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'TALB' (Album/Movie/Show title)                     'Friends of Old Time Music: The Folk Arrival, 1961-1965'
'TBPM' (BPM (beats per minute))                     '114.5'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '1965'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Peter K. Siegel']])
'TIT2' (Title/songname/content description)         'Short Life of Trouble'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Doc and Arnold Watson'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/3'
'TPUB' (Publisher)                                  'Smithsonian Folkways'
'TRCK' (Track number/Position in set)               '13/19'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Watson, Doc and Watson, Arnold'
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'TXXX:Artists'                                      'Doc/Arnold Watson'
'TXXX:BARCODE'                                      '093074016022'
'TXXX:CATALOGNUMBER'                                'SFW CD 40160'
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'TXXX:MusicBrainz Album Status'                     'official'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['country', 'all', 'spotify']
'TXXX:mood'                                         'Relaxed/Not aggressive/Not party/Not electronic/Happy/Acoustic/Sad'
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.40 dB'
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Friends of Old Time Music - Cd 2/13 - DOC & ARNOLD WATSON - Short Life of Trouble.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  220
                                           'genre'  loc-namerica
                                        'filesize'  8836856
                                           'mtime'  1621627949
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Cd 2 13 DOC & ARNOLD WATSON loc namerica
                                      'tag_artist'  Doc and Arnold Watson
                                     'tag_release'  Friends of Old Time Music: The Folk Arrival, 1961-1965
                                       'tag_title'  Short Life of Trouble
                                             'bpm'  114.5
                                    'search_title'  'life':2 'of':3 'short':1 'trouble':4
                                   'search_artist'  'and':2 'arnold':3 'doc':1 'watson':4
                                  'search_release'  '1961':11 '19611965':13 '1965':12 'arrival':9,10 'folk':8 'friends':1 'music':5,6 'of':2 'old':3 'the':7 'time':4
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                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['country', 'all', 'spotify']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627949.4850183  (2021-05-21 22:12:29)
                             'size'  8836856