======================== unified (from filesystem) ========================
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                                        'duration'  '130'
                                          'artist'  'Benny Goodman and His Orchestra'
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                                           'title'  "Alexander's Ragtime Band"
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                                      'lastfmtags'  "['dixieland', 'jazz', 'orchestra', 'big band', 'swing', 'jazz orchestra']"
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '8'
                                      'tracktotal'  '20'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-soft-swing;prerock-jb-jazz-soft-salon or easy'
                                             'bpm'  '100.009'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'The History of Jazz: Dixieland to Swing'
'TBPM' (BPM (beats per minute))                     '100.009'
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'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-soft-swing', 'prerock-jb-jazz-soft-salon or easy']
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997-10-08'
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'TIT2' (Title/songname/content description)         "Alexander's Ragtime Band"
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Benny Goodman and His Orchestra'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '2/2'
'TPUB' (Publisher)                                  'Retro'
'TRCK' (Track number/Position in set)               '8/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Goodman, Benny and His Orchestra'
'TXXX:ASIN'                                         'B000005S8D'
'TXXX:Artists'                                      'Benny Goodman and His Orchestra'
'TXXX:CATALOGNUMBER'                                'R2CD 40-09'
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'TXXX:MusicBrainz Album Status'                     'official'
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'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['dixieland', 'jazz', 'orchestra', 'big band', 'swing', 'jazz orchestra']
'TXXX:originalyear'                                 '1997'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                        '+2.21 dB'
'TXXX:replaygain_track_peak'                        '0.483380'
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                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/The History Of Jazz - Dixieland To Swing/CD 2/08  - Benny Goodman - Alexander_s Ragtime Band.mp3
                                         'working'  None
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                                    'duration_sec'  130
                                           'genre'  prerock-jb-jazz-soft-swing;prerock-jb-jazz-soft-salon or easy
                                        'filesize'  3178040
                                           'mtime'  1620572502
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                                      'tag_artist'  Benny Goodman and His Orchestra
                                     'tag_release'  The History of Jazz: Dixieland to Swing
                                       'tag_title'  Alexander's Ragtime Band
                                             'bpm'  100.009
                                    'search_title'  'alexander':1 'alexanders':3 'band':5 'ragtime':4 's':2
                                   'search_artist'  'and':3 'benny':1 'goodman':2 'his':4 'orchestra':5
                                  'search_release'  'dixieland':6 'history':2 'jazz':4,5 'of':3 'swing':8 'the':1 'to':7
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                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dixieland', 'jazz', 'orchestra', 'big band', 'swing', 'jazz orchestra']
                                        'tag_date'  1997
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620572502.3725019  (2021-05-09 17:01:42)
                             'size'  3178040