======================== unified (from filesystem) ========================
                                         'bitrate'  '96.711'
                                        'duration'  '314'
                                          'artist'  'Aiko Yohen'
                                     'text_people'  ''
                                         'release'  "Ryukyu Rare Groove: Shimauta Pops in 60's-70's"
                                           'title'  'Nantahama'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;set-pl-mor'
                                             'bpm'  '88.168'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Ryukyu Rare Groove: Shimauta Pops in 60's-70's"
'TBPM' (BPM (beats per minute))                     '88.168'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'set-pl-mor']
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Nantahama'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Aiko Yohen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '09'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:URL'                                          'https://www.farsidemusic.com/acatalog/Ryukyu-Rare-Groove---Shimauta-Pops-in-60-s-70-s--FSD2283.html'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.42 dB'
'TXXX:replaygain_track_peak'                        '0.424467'

========================== row from database ==========================
                                              'id'  1391518
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/ryukyu rare groove. shimauta pops in 60s-70s/09-track 9.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  314
                                           'genre'  loc-asia-japan;set-pl-mor
                                        'filesize'  3803006
                                           'mtime'  1637019894
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia ryukyu rare groove. shimauta pops 60s 70s 09 track 9 loc asia japan;set pl mor
                                      'tag_artist'  Aiko Yohen
                                     'tag_release'  Ryukyu Rare Groove: Shimauta Pops in 60's-70's
                                       'tag_title'  Nantahama
                                             'bpm'  88.168
                                    'search_title'  'nantahama':1
                                   'search_artist'  'aiko':1 'yohen':2
                                  'search_release'  '60':8 '60s70s':12 '70':10 'groove':3,4 'in':7 'pops':6 'rare':2 'ryukyu':1 's':9,11 'shimauta':5
                                     'search_rest'  '00asia':1 '60s':8 '70s':9 '9':11 'asia':13 'groove':4,5 'japan':14,16 'loc':12 'mor':19 'pl':18 'pops':7 'rare':3 'ryukyu':2 'set':15,17 'shimauta':6 'track':10
                                    'search_combo'  '00asia':16 '60':11C '60s':23 '60s70s':15C '70':13C '70s':24 '9':26 'aiko':2B 'asia':28 'groove':6C,7C,19,20 'in':10C 'japan':29,31 'loc':27 'mor':34 'nantahama':1A 'pl':33 'pops':9C,22 'rare':5C,18 'ryukyu':4C,17 's':12C,14C 'set':30,32 'shimauta':8C,21 'track':25 'yohen':3B
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637019893.5658646  (2021-11-16 00:44:53)
                             'size'  3803006