======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '611'
                                          'artist'  'Dr. N. Rajam + Zakir Hussain'
                                     'text_people'  ''
                                         'release'  'The Enchanting Violin of Dr. N. Rajam'
                                           'title'  'Raga Khamaj, Gat in Addha Tal'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-india'
                                             'bpm'  '97'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:Media Jukebox: Intensity:\x00\x00\x00'        '1'
'COMM:Media Jukebox: Peak Level:\x00\x00\x00'       '0.96582'
'COMM:Media Jukebox: Replay Gain:\x00\x00\x00'      '-9.78089'
'COMM:Media Jukebox: Tool Name:\x00\x00\x00'        'Media Center'
'COMM:Media Jukebox: Tool Version:\x00\x00\x00'     '10.0.110'
'TALB' (Album/Movie/Show title)                     'The Enchanting Violin of Dr. N. Rajam'
'TBPM' (BPM (beats per minute))                     '97'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-india'
'TIT2' (Title/songname/content description)         'Raga Khamaj, Gat in Addha Tal'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dr. N. Rajam + Zakir Hussain'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.12 dB'
'TXXX:replaygain_track_peak'                        '0.583849'

========================== row from database ==========================
                                              'id'  1402473
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Dr. N. Rajam/The Enchanting Violin of Dr. N. Rajam/03 - raga khamaj, gat in addha tal.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  611
                                           'genre'  loc-asia-india
                                        'filesize'  24479744
                                           'mtime'  1621629138
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 03 raga khamaj, gat addha tal loc asia india
                                      'tag_artist'  Dr. N. Rajam + Zakir Hussain
                                     'tag_release'  The Enchanting Violin of Dr. N. Rajam
                                       'tag_title'  Raga Khamaj, Gat in Addha Tal
                                             'bpm'  97.0
                                    'search_title'  'addha':6 'gat':4 'in':5 'khamaj':2,3 'raga':1 'tal':7
                                   'search_artist'  'dr':1,2 'hussain':7 'n':3,4 'rajam':5 'zakir':6
                                  'search_release'  'dr':5,6 'enchanting':2 'n':7,8 'of':4 'rajam':9 'the':1 'violin':3
                                     'search_rest'  '00asia':1 'addha':6 'asia':9 'gat':5 'india':10 'khamaj':3,4 'loc':8 'raga':2 'tal':7
                                    'search_combo'  '00asia':24 'addha':6A,29 'asia':32 'dr':8B,9B,19C,20C 'enchanting':16C 'gat':4A,28 'hussain':14B 'in':5A 'india':33 'khamaj':2A,3A,26,27 'loc':31 'n':10B,11B,21C,22C 'of':18C 'raga':1A,25 'rajam':12B,23C 'tal':7A,30 'the':15C 'violin':17C 'zakir':13B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629137.7517111  (2021-05-21 22:32:17)
                             'size'  24479744