======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '140'
                                          'artist'  'Etta James'
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                                     'tracknumber'  '17'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'set-th-sex'
                                             'bpm'  '115.987'
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '115.987'
'TCON' (Content type, a.k.a. Genre)                 'set-th-sex'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Pick-Up'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Etta James'
'TRCK' (Track number/Position in set)               '17'
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========================== row from database ==========================
                                              'id'  771244
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/sexy/Etta James - Pick-Up.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  140
                                           'genre'  set-th-sex
                                        'filesize'  1683450
                                           'mtime'  1620343513
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                                     'tag_release'  The Complete Modern and Kent Recordings - Disc 1
                                       'tag_title'  Pick-Up
                                             'bpm'  115.987
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                                   'search_artist'  'etta':1 'james':2
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                                     'search_rest'  '0novelty':2 '0playlists':1 'set':5 'sex':7 'sexy':4 'th':6 'themes':3
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                                    'tag_tracknum'  17
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-4', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['rhythm and blues', 'blues', 'jazz', 'female vocalists', 'soul']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343512.7115989  (2021-05-07 01:25:12)
                             'size'  1683450