======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '232'
                                          'artist'  'Rajasthan'
                                     'text_people'  ''
                                         'release'  'vièles et guimbardes'
                                           'title'  'Solo of water drum jaltal'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-UNU-3', 'Q-JZFKS-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-2', 'q-bass-1', "
 "'Q-CHART-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['india']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'B4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-india-rajastan'
                                             'bpm'  '105.1'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'vièles et guimbardes'
'TBPM' (BPM (beats per minute))                     '105.1'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india-rajastan'
'TIT2' (Title/songname/content description)         'Solo of water drum jaltal'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Rajasthan'
'TRCK' (Track number/Position in set)               'B4'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   'india'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.98 dB'
'TXXX:replaygain_track_peak'                        '0.848618'

========================== row from database ==========================
                                              'id'  1481898
                                            'path'  /data/Music/Bulk/00poprockelectronic/Rajasthan. viäles et guimbardes (1976)/B4. Solo of water drum jaltal.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  232
                                           'genre'  loc-asia-india-rajastan
                                        'filesize'  4652896
                                           'mtime'  1621627358
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Rajasthan. viäles (1976) B4. loc asia india rajastan
                                      'tag_artist'  Rajasthan
                                     'tag_release'  vièles et guimbardes
                                       'tag_title'  Solo of water drum jaltal
                                             'bpm'  105.1
                                    'search_title'  'drum':4 'jaltal':5 'of':2 'solo':1 'water':3
                                   'search_artist'  'rajasthan':1
                                  'search_release'  'et':3 'guimbardes':4 'vieles':1,2
                                     'search_rest'  '00poprockelectronic':1 '1976':6,7 'asia':11 'b4':8,9 'india':12 'loc':10 'rajastan':13 'rajasthan':2,3 'viales':4,5
                                    'search_combo'  '00poprockelectronic':11 '1976':16,17 'asia':21 'b4':18,19 'drum':4A 'et':9C 'guimbardes':10C 'india':22 'jaltal':5A 'loc':20 'of':2A 'rajastan':23 'rajasthan':6B,12,13 'solo':1A 'viales':14,15 'vieles':7C,8C 'water':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-4', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-3', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-3', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['india']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627358.3294303  (2021-05-21 22:02:38)
                             'size'  4652896