======================== unified (from filesystem) ========================
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                                        'duration'  '131'
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                                      'lastfmtags'  "['indie', 'indie pop', 'alternative', 'female vocalists', 'canadian']"
                                     'discogstags'  "['rock', 'folk rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
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                            'musicbrainz_artistid'  ''
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                                            'date'  '2007'
                                        'comments'  ''
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                                             'bpm'  '113.326'
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '113.326'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'Knife Going In'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '131000'
'TPE1' (Lead performer(s)/Soloist(s))               'Tegan and Sara'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '04'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'folk rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'female vocalists', 'canadian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.31 dB'
'TXXX:replaygain_track_peak'                        '0.545688'
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                                              'id'  1286198
                                            'path'  /data/Music/Bulk/00poprockelectronic/Tegan and Sara/The Con/4. knife going in.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  131
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  3164042
                                           'mtime'  1636402033
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                                     'tag_release'  The Con
                                       'tag_title'  Knife Going In
                                             'bpm'  113.326
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                                   'search_artist'  'and':2 'sara':3 'tegan':1
                                  'search_release'  'con':2 'the':1
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                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'female vocalists', 'canadian']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'folk rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1636402032.682871  (2021-11-08 21:07:12)
                             'size'  3164042