======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '103'
                                          'artist'  'Robert Lopez and Jeff Marx'
                                     'text_people'  ''
                                         'release'  'Avenue Q (Original Broadway Cast Recording)'
                                           'title'  ("There's A Fine, Fine Line (Reprise) / What Do You Do With A B.A. In English "
 '(Reprise)')
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', 'Q-PIANO-3', "
 "'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'broadway', 'comedy', 'musical', 'musicals']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
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                                             'bpm'  '135.004'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Avenue Q (Original Broadway Cast Recording)'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TIT2' (Title/songname/content description)         ("There's A Fine, Fine Line (Reprise) / What Do You Do With A B.A. In English "
 '(Reprise)')
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Robert Lopez and Jeff Marx'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'broadway', 'comedy', 'musical', 'musicals']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.79 dB'
'TXXX:replaygain_track_peak'                        '0.808220'

========================== row from database ==========================
                                              'id'  1500103
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Robert Lopez and Jeff Marx__Avenue Q (Original Broadway Cast Recording)__20 - There_s A Fine, Fine Line (Reprise) _ What Do You Do With A B.A. In English (Reprise).mp3
                                         'working'  None
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                                    'duration_sec'  103
                                           'genre'  soundtrack-video
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                                           'mtime'  1620331869
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                                     'tag_release'  Avenue Q (Original Broadway Cast Recording)
                                       'tag_title'  There's A Fine, Fine Line (Reprise) / What Do You Do With A B.A. In English (Reprise)
                                             'bpm'  135.004
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                                    'tag_tracknum'  20
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-1', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'broadway', 'comedy', 'musical', 'musicals']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620331868.9571538  (2021-05-06 22:11:08)
                             'size'  2494482