======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '80'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'The Huli of Papua New Guinea'
                                           'title'  'Musical bow unedited'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1982'
                                        'comments'  ''
                                           'genre'  'loc-africa'
                                             'bpm'  '120.902'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Huli of Papua New Guinea'
'TBPM' (BPM (beats per minute))                     '120.902'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa'
'TDRC' (Recording time)                             '1982'
'TIT2' (Title/songname/content description)         'Musical bow unedited'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Mp3gain_minmax'                               '137,212'
'TXXX:Mp3gain_undo'                                 '-002,-002,N'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.58 dB'
'TXXX:replaygain_track_peak'                        '0.876810'

========================== row from database ==========================
                                              'id'  928651
                                            'path'  /data/Music/Bulk/00localcharacter/00africa/[Musicaphon ‎• BM 30 SL 2703] - The Huli Of Papua Niugini, 1982/A02 No. 2 Musical bow_unedited.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  80
                                           'genre'  loc-africa
                                        'filesize'  3212297
                                           'mtime'  1620525064
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00africa [Musicaphon ‎• BM 30 SL 2703] Of Niugini, 1982 A02 No. 2 bow_unedited loc africa
                                      'tag_artist'  [unknown]
                                     'tag_release'  The Huli of Papua New Guinea
                                       'tag_title'  Musical bow unedited
                                             'bpm'  120.902
                                    'search_title'  'bow':2 'musical':1 'unedited':3
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'guinea':6 'huli':2 'new':5 'of':3 'papua':4 'the':1
                                     'search_rest'  '00africa':1 '1982':12 '2':16 '2703':7,8 '30':5 'a02':13 'africa':20 'bm':4 'bow':17 'loc':19 'musicaphon':2,3 'niugini':10,11 'no':14,15 'of':9 'sl':6 'unedited':18
                                    'search_combo'  '00africa':12 '1982':23 '2':27 '2703':18,19 '30':16 'a02':24 'africa':31 'bm':15 'bow':2A,28 'guinea':11C 'huli':7C 'loc':30 'musical':1A 'musicaphon':13,14 'new':10C 'niugini':21,22 'no':25,26 'of':8C,20 'papua':9C 'sl':17 'the':6C 'unedited':3A,29 'unknown':4B,5B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1982
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525064.4612038  (2021-05-09 03:51:04)
                             'size'  3212297