======================== unified (from filesystem) ========================
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                                        'duration'  '323'
                                          'artist'  'T. Williams, James Jacob, Tim Deluxe'
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                                           'title'  'The Learning Process (Original Mix)'
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                                           'genre'  'electronic-th-techno-minimal or deephouse'
                                             'bpm'  '120'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

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'TBPM' (BPM (beats per minute))                     '120'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno-minimal or deephouse'
'TDRC' (Recording time)                             '2018-03-09'
'TIT2' (Title/songname/content description)         'The Learning Process (Original Mix)'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'T. Williams, James Jacob, Tim Deluxe'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.16 dB'
'TXXX:replaygain_track_peak'                        '0.433741'

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic/deep house/t. williams, james jacob, tim deluxe - the learning process (original mix) [strictly rhythm].mp3
                                         'working'  None
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                                    'duration_sec'  323
                                           'genre'  electronic-th-techno-minimal or deephouse
                                        'filesize'  13046469
                                           'mtime'  1621085305
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                                      'tag_artist'  T. Williams, James Jacob, Tim Deluxe
                                     'tag_release'  None
                                       'tag_title'  The Learning Process (Original Mix)
                                             'bpm'  120.0
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                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'Q-MIXBEAT-3', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2018
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621085304.5238137  (2021-05-15 15:28:24)
                             'size'  13046469