<pre>
======================== unified (from filesystem) ========================
                                         'bitrate'  '139.224'
                                        'duration'  '282'
                                          'artist'  'Orlando Julius &amp; The Heliocentrics'
                                     'text_people'  ''
                                         'release'  'Dimitri - Intrumental'
                                           'title'  "'In The Middle'"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['afrobeat', 'afro-funk', 'afro-jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '141.4'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================<mutagen.mp3.MPEGInfo object at 0x7f9537d81940>

'TALB' (Album/Movie/Show title)                     'Dimitri - Intrumental'
'TBPM' (BPM (beats per minute))                     '141.4'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TIT2' (Title/songname/content description)         "'In The Middle'"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Orlando Julius &amp; The Heliocentrics'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TSSE' (Software/Hardware and settings used for encoding)  'Lavf58.45.100'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['afrobeat', 'afro-funk', 'afro-jazz']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.20 dB'
'TXXX:replaygain_track_peak'                        '0.536267'
'TXXX:youtube'                                      'e-jSlcV0gRM'

========================== row from database ==========================
                                              'id'  1517329
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Dimitri/Instrumental/Orlando Julius & The Heliocentrics - _In The Middle_-e-jSlcV0gRM.mp3
                                         'working'  None
                                         'bitrate'  139
                                    'duration_sec'  282
                                           'genre'  funk or soul
                                        'filesize'  4926792
                                           'mtime'  1628357630
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Instrumental _In Middle_ jSlcV0gRM funk or soul
                                      'tag_artist'  Orlando Julius & The Heliocentrics
                                     'tag_release'  Dimitri - Intrumental
                                       'tag_title'  'In The Middle'
                                             'bpm'  141.4
                                    'search_title'  'in':1,2 'middle':4,5 'the':3
                                   'search_artist'  'heliocentrics':4 'julius':2 'orlando':1 'the':3
                                  'search_release'  'dimitri':1 'intrumental':2
                                     'search_rest'  'funk':5 'in':2 'instrumental':1 'j':8 'jslcv0grm':4 'middle':3 'or':6 'rm':11 'slc':9 'soul':7 'v0g':10
                                    'search_combo'  'dimitri':10C 'funk':16 'heliocentrics':9B 'in':1A,2A,13 'instrumental':12 'intrumental':11C 'j':19 'jslcv0grm':15 'julius':7B 'middle':4A,5A,14 'or':17 'orlando':6B 'rm':22 'slc':20 'soul':18 'the':3A,8B 'v0g':21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-CHART-2', 'q-drums-4', 'Q-SYN-2', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['afrobeat', 'afro-funk', 'afro-jazz']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357629.9809306  (2021-08-07 19:33:49)
                             'size'  4926792