======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '212'
                                          'artist'  'Aretha Franklin'
                                     'text_people'  ''
                                         'release'  'Respect - The Very Best of Aretha Franklin'
                                           'title'  'Say a Little Prayer'
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                                      'lastfmtags'  "['rhythm and blues', 'blues', 'jazz', 'female vocalists', 'soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '131.755'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Respect - The Very Best of Aretha Franklin'
'TBPM' (BPM (beats per minute))                     '131.755'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Say a Little Prayer'
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Aretha Franklin'
'TRCK' (Track number/Position in set)               '5'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rhythm and blues', 'blues', 'jazz', 'female vocalists', 'soul']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.04 dB'
'TXXX:replaygain_track_peak'                        '0.460206'

========================== row from database ==========================
                                              'id'  771111
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/Aretha Franklin - I SAY A LITTLE PRAYER.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  212
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  4207197
                                           'mtime'  1620586865
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism I SAY LITTLE PRAYER hip hop or rnb or rap or turntablism
                                      'tag_artist'  Aretha Franklin
                                     'tag_release'  Respect - The Very Best of Aretha Franklin
                                       'tag_title'  Say a Little Prayer
                                             'bpm'  131.755
                                    'search_title'  'a':2 'little':3 'prayer':4 'say':1
                                   'search_artist'  'aretha':1 'franklin':2
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                                     'search_rest'  'hip':9 'hiphop':1 'hop':10 'i':5 'little':7 'or':11 'prayer':8 'rap':2 'rnb':3 'say':6 'turntablism':4
                                    'search_combo'  'a':2A 'aretha':5B,12C 'best':10C 'franklin':6B,13C 'hip':22 'hiphop':14 'hop':23 'i':18 'little':3A,20 'of':11C 'or':24 'prayer':4A,21 'rap':15 'respect':7C 'rnb':16 'say':1A,19 'the':8C 'turntablism':17 'very':9C
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rhythm and blues', 'blues', 'jazz', 'female vocalists', 'soul']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620586865.259439  (2021-05-09 21:01:05)
                             'size'  4207197