======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '176'
                                          'artist'  'George Ku Trio'
                                     'text_people'  ''
                                         'release'  'Vintage Hawaiian Music: Steel Guitar Masters 1928 - 1934'
                                           'title'  'Na Pua O Hawaii'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'hawaiian', 'hawaii', 'folk', 'americana']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1930'
                                        'comments'  ''
                                           'genre'  'loc-islands-hawaii;set-pl-mor'
                                             'bpm'  '132.878'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Vintage Hawaiian Music: Steel Guitar Masters 1928 - 1934'
'TBPM' (BPM (beats per minute))                     '132.878'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['loc-islands-hawaii', 'set-pl-mor']
'TDRC' (Recording time)                             '1930'
'TIT2' (Title/songname/content description)         'Na Pua O Hawaii'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'George Ku Trio'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '1'
'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:lastfmtags'                                   ['all', 'hawaiian', 'hawaii', 'folk', 'americana']
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.87 dB'
'TXXX:replaygain_track_peak'                        '0.575319'

========================== row from database ==========================
                                              'id'  1390859
                                            'path'  /data/Music/Bulk/00localcharacter/00islands/Vintage Hawaiian Music - Steel guitar masters 1928-34/George Ku Trio - Na pua o Hawaii.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  176
                                           'genre'  loc-islands-hawaii;set-pl-mor
                                        'filesize'  4241696
                                           'mtime'  1620535377
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00islands guitar masters pua loc islands hawaii;set pl mor
                                      'tag_artist'  George Ku Trio
                                     'tag_release'  Vintage Hawaiian Music: Steel Guitar Masters 1928 - 1934
                                       'tag_title'  Na Pua O Hawaii
                                             'bpm'  132.878
                                    'search_title'  'hawaii':4 'na':1 'o':3 'pua':2
                                   'search_artist'  'george':1 'ku':2 'trio':3
                                  'search_release'  '1928':8 '1934':9 'guitar':6 'hawaiian':2 'masters':7 'music':3,4 'steel':5 'vintage':1
                                     'search_rest'  '00islands':1 'guitar':2 'hawaii':7,9 'islands':6 'loc':5 'masters':3 'mor':12 'pl':11 'pua':4 'set':8,10
                                    'search_combo'  '00islands':17 '1928':15C '1934':16C 'george':5B 'guitar':13C,18 'hawaii':4A,23,25 'hawaiian':9C 'islands':22 'ku':6B 'loc':21 'masters':14C,19 'mor':28 'music':10C,11C 'na':1A 'o':3A 'pl':27 'pua':2A,20 'set':24,26 'steel':12C 'trio':7B 'vintage':8C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['all', 'hawaiian', 'hawaii', 'folk', 'americana']
                                        'tag_date'  1930
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620535377.4187574  (2021-05-09 06:42:57)
                             'size'  4241696