======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '383'
                                          'artist'  'Rajasthan'
                                     'text_people'  ''
                                         'release'  'vièles et guimbardes'
                                           'title'  "Morchang Iron Jew's Solo"
                                           '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-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['india']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  'B1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-india-rajastan'
                                             'bpm'  '128.6'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'vièles et guimbardes'
'TBPM' (BPM (beats per minute))                     '128.6'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india-rajastan'
'TIT2' (Title/songname/content description)         "Morchang Iron Jew's Solo"
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               'Rajasthan'
'TRCK' (Track number/Position in set)               'B1'
'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'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.19 dB'
'TXXX:replaygain_track_peak'                        '0.852505'

========================== row from database ==========================
                                              'id'  1504429
                                            'path'  /data/Music/Bulk/00poprockelectronic/Rajasthan. viäles et guimbardes (1976)/B1. Morchang Iron Jew_s Solo.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  383
                                           'genre'  loc-asia-india-rajastan
                                        'filesize'  6135880
                                           'mtime'  1621627358
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Rajasthan. viäles (1976) B1. Jew_s loc asia india rajastan
                                      'tag_artist'  Rajasthan
                                     'tag_release'  vièles et guimbardes
                                       'tag_title'  Morchang Iron Jew's Solo
                                             'bpm'  128.6
                                    'search_title'  'iron':2 'jew':3 'jews':5 'morchang':1 's':4 'solo':6
                                   'search_artist'  'rajasthan':1
                                  'search_release'  'et':3 'guimbardes':4 'vieles':1,2
                                     'search_rest'  '00poprockelectronic':1 '1976':6,7 'asia':13 'b1':8,9 'india':14 'jew':10 'loc':12 'rajastan':15 'rajasthan':2,3 's':11 'viales':4,5
                                    'search_combo'  '00poprockelectronic':12 '1976':17,18 'asia':24 'b1':19,20 'et':10C 'guimbardes':11C 'india':25 'iron':2A 'jew':3A,21 'jews':5A 'loc':23 'morchang':1A 'rajastan':26 'rajasthan':7B,13,14 's':4A,22 'solo':6A 'viales':15,16 'vieles':8C,9C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', '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'  1621627358.2717142  (2021-05-21 22:02:38)
                             'size'  6135880