======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '54'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'BM 30 SL 2704 Music of Oceania: The Abelam of Papua Niugini P.1983?'
                                           'title'  "No. 5 Introductory song to a speach 0'53"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-4', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1983'
                                        'comments'  ''
                                           'genre'  'loc-africa'
                                             'bpm'  '142.708'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'BM 30 SL 2704 Music of Oceania: The Abelam of Papua Niugini P.1983?'
'TBPM' (BPM (beats per minute))                     '142.708'
'TCON' (Content type, a.k.a. Genre)                 'loc-africa'
'TDRC' (Recording time)                             '1983'
'TIT2' (Title/songname/content description)         "No. 5 Introductory song to a speach 0'53"
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'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'                                       '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.452554'

========================== row from database ==========================
                                              'id'  1515080
                                            'path'  /data/Music/Bulk/00localcharacter/Music of Oceania - Papua Niugini - The Abelam of (BM 30 SL 2704)/No. 5 Introductory song to a speach 0_53.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  54
                                           'genre'  loc-africa
                                        'filesize'  2169516
                                           'mtime'  1620592805
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter (BM 2704) 0_53 loc africa
                                      'tag_artist'  [unknown]
                                     'tag_release'  BM 30 SL 2704 Music of Oceania: The Abelam of Papua Niugini P.1983?
                                       'tag_title'  No. 5 Introductory song to a speach 0'53
                                             'bpm'  142.708
                                    'search_title'  '0':9 '053':11 '5':3 '53':10 'a':7 'introductory':4 'no':1,2 'song':5 'speach':8 'to':6
                                   'search_artist'  'unknown':1,2
                                  'search_release'  '1983':14 '2704':4 '30':2 'abelam':10 'bm':1 'music':5 'niugini':12 'oceania':7,8 'of':6 'p':13 'p1983':15 'papua':11 'sl':3 'the':9
                                     'search_rest'  '0':5 '2704':3,4 '53':6 'africa':8 'bm':1,2 'loc':7
                                    'search_combo'  '0':9A,33 '053':11A '1983':27C '2704':17C,31,32 '30':15C '5':3A '53':10A,34 'a':7A 'abelam':23C 'africa':36 'bm':14C,29,30 'introductory':4A 'loc':35 'music':18C 'niugini':25C 'no':1A,2A 'oceania':20C,21C 'of':19C 'p':26C 'p1983':28C 'papua':24C 'sl':16C 'song':5A 'speach':8A 'the':22C 'to':6A 'unknown':12B,13B
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-3', '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'  []
                                        'tag_date'  1983
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620592804.7019594  (2021-05-09 22:40:04)
                             'size'  2169516