======================== unified (from filesystem) ========================
                                         'bitrate'  '194.233'
                                        'duration'  '271'
                                          'artist'  'Martin Best Consort'
                                     'text_people'  '镞'
                                         'release'  'A medieval banquet1'
                                           'title'  '03- A chenter mxer- Canso'
                                           'quals'  ("['Q-OLDST-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['medieval', 'early music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '115.722'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'A medieval banquet1'
'TBPM' (BPM (beats per minute))                     '115.722'
'TCOM' (Composer)                                   'Beatriz de Dia (aka Comtessa de Dia)'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         '03- A chenter mxer- Canso'
'TKEY' (Initial key)                                '9A'
'TOPE' (Original artist(s)/performer(s))            '镞'
'TPE1' (Lead performer(s)/Soloist(s))               'Martin Best Consort'
'TPE2' (Band/orchestra/accompaniment)               'Martin Best Consort'
'TPUB' (Publisher)                                  'Nimbus'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['medieval', 'early music']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.41 dB'
'TXXX:replaygain_track_peak'                        '0.797986'

========================== row from database ==========================
                                              'id'  500000
                                            'path'  /data/Music/Bulk/00localcharacter/a medieval banquet (cd1). music from the age of chivalry - the martin best consort/03. a chanter m•er- canso.mp3
                                         'working'  None
                                         'bitrate'  194
                                    'duration_sec'  271
                                           'genre'  loc-unsorted
                                        'filesize'  6584198
                                           'mtime'  1620401675
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter (cd1). music from the age of chivalry the martin best consort 03. chanter m•er canso loc unsorted
                                      'tag_artist'  Martin Best Consort
                                     'tag_release'  A medieval banquet1
                                       'tag_title'  03- A chenter mxer- Canso
                                             'bpm'  115.722
                                    'search_title'  '03':1,2 'a':3 'canso':7 'chenter':4 'mxer':5,6
                                   'search_artist'  'best':2 'consort':3 'martin':1
                                  'search_release'  'a':1 'banquet1':3 'medieval':2
                                     'search_rest'  '03':12,13 'age':6 'best':10 'canso':17 'cd1':1,2 'chanter':14 'chivalry':8 'consort':11 'er':16 'from':4 'loc':18 'm':15 'martin':9 'music':3 'of':7 'the':5 'unsorted':19
                                    'search_combo'  '03':1A,2A,25,26 'a':3A,11C 'age':19 'banquet1':13C 'best':9B,23 'canso':7A,30 'cd1':14,15 'chanter':27 'chenter':4A 'chivalry':21 'consort':10B,24 'er':29 'from':17 'loc':31 'm':28 'martin':8B,22 'medieval':12C 'music':16 'mxer':5A,6A 'of':20 'the':18 'unsorted':32
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['medieval', 'early music']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620401675.1197011  (2021-05-07 17:34:35)
                             'size'  6584198