======================== unified (from filesystem) ========================
                                         'bitrate'  '160.104'
                                        'duration'  '157'
                                          'artist'  'Solomon Islands'
                                     'text_people'  ''
                                         'release'  'Songs of the Earth - Astonishing and Rare Voices'
                                           'title'  "Roiroa (Women's Song)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-1', 'Q-UNU-3', 'Q-LOCALNESS-4', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oceania', 'tropical', 'aboriginal', 'world folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'loc-unsorted-mix'
                                             'bpm'  '106.308'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Songs of the Earth - Astonishing and Rare Voices'
'TBPM' (BPM (beats per minute))                     '106.308'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted-mix'
'TDRC' (Recording time)                             '1998'
'TIT2' (Title/songname/content description)         "Roiroa (Women's Song)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Solomon Islands'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:lastfmtags'                                   ['oceania', 'tropical', 'aboriginal', 'world folk']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.86 dB'
'TXXX:replaygain_track_peak'                        '0.899910'

========================== row from database ==========================
                                              'id'  1517901
                                            'path'  /data/Music/Bulk/00localcharacter/VA. World 1： Trad/Songs Of The Earth： Astonishing and Rare Voices (Auvidis, Unesco, 1998) [160k]/13 - Solomon Islands - Roiroa (Women_S Song).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  157
                                           'genre'  loc-unsorted-mix
                                        'filesize'  3153187
                                           'mtime'  1621627228
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter VA. World 1： Trad Of The Earth： (Auvidis, Unesco, 1998) [160k] 13 (Women_S loc unsorted mix
                                      'tag_artist'  Solomon Islands
                                     'tag_release'  Songs of the Earth - Astonishing and Rare Voices
                                       'tag_title'  Roiroa (Women's Song)
                                             'bpm'  106.308
                                    'search_title'  'roiroa':1 's':3 'song':5,6 'women':2 'womens':4
                                   'search_artist'  'islands':2 'solomon':1
                                  'search_release'  'and':6 'astonishing':5 'earth':4 'of':2 'rare':7 'songs':1 'the':3 'voices':8
                                     'search_rest'  '1':4,5,6 '160k':19,20 '1998':17,18 'auvidis':13,14 'earth':10,11,12 'loc':25 'mix':27 'of':8 's':22,24 'the':9 'trad':7 'unesco':15,16 'unsorted':26 'va':1,2 'women':21,23 'world':3
                                    'search_combo'  '1':20,21,22 '160k':35,36 '1998':33,34 'and':14C 'astonishing':13C 'auvidis':29,30 'earth':12C,26,27,28 'islands':8B 'loc':41 'mix':43 'of':10C,24 'rare':15C 'roiroa':1A 's':3A,38,40 'solomon':7B 'song':5A,6A 'songs':9C 'the':11C,25 'trad':23 'unesco':31,32 'unsorted':42 'va':17,18 'voices':16C 'women':2A,37,39 'womens':4A 'world':19
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['oceania', 'tropical', 'aboriginal', 'world folk']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621627227.8194964  (2021-05-21 22:00:27)
                             'size'  3153187