======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '722'
                                          'artist'  'Zakir Hussain'
                                     'text_people'  ''
                                         'release'  'Music of The Deserts'
                                           'title'  '02.The Great Indian Desert'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indian classical', 'india', 'percussion', 'indian', 'world', 'tabla']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '144.130'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Music of The Deserts'
'TBPM' (BPM (beats per minute))                     '144.130'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         '02.The Great Indian Desert'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '722364'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Zakir Hussain'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['indian classical', 'india', 'percussion', 'indian', 'world', 'tabla']
'TXXX:original release date'                        ['1993', '1997']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.79 dB'
'TXXX:replaygain_track_peak'                        '0.946429'

========================== row from database ==========================
                                              'id'  924795
                                            'path'  /data/Music/Bulk/00localcharacter/00south-europe-middle-east/Tabla Beat Science/Zakir Hussain/Music For The Deserts/02.The Great Indian Carriers - Caravans, Panihari, Ghangaur.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  722
                                           'genre'  loc-asia-india
                                        'filesize'  17338240
                                           'mtime'  1621629595
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00south europe middle east Tabla Beat Science For Carriers Caravans, Panihari, Ghangaur loc asia india
                                      'tag_artist'  Zakir Hussain
                                     'tag_release'  Music of The Deserts
                                       'tag_title'  02.The Great Indian Desert
                                             'bpm'  144.13
                                    'search_title'  '02':1 '02the':3 'desert':6 'great':4 'indian':5 'the':2
                                   'search_artist'  'hussain':2 'zakir':1
                                  'search_release'  'deserts':4 'music':1 'of':2 'the':3
                                     'search_rest'  '00south':1 'asia':16 'beat':6 'caravans':10,11 'carriers':9 'east':4 'europe':2 'for':8 'ghangaur':14 'india':17 'loc':15 'middle':3 'panihari':12,13 'science':7 'tabla':5
                                    'search_combo'  '00south':13 '02':1A '02the':3A 'asia':28 'beat':18 'caravans':22,23 'carriers':21 'desert':6A 'deserts':12C 'east':16 'europe':14 'for':20 'ghangaur':26 'great':4A 'hussain':8B 'india':29 'indian':5A 'loc':27 'middle':15 'music':9C 'of':10C 'panihari':24,25 'science':19 'tabla':17 'the':2A,11C 'zakir':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indian classical', 'india', 'percussion', 'indian', 'world', 'tabla']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629595.068046  (2021-05-21 22:39:55)
                             'size'  17338240