======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '128'
                                          'artist'  'Trio Tservonaja Kalinonka'
                                     'text_people'  ''
                                         'release'  "Les Menestrels d'Ukraine"
                                           'title'  'Dudarik'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  '20'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '98.4'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '040B5E14'
'TALB' (Album/Movie/Show title)                     "Les Menestrels d'Ukraine"
'TBPM' (BPM (beats per minute))                     '98.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Dudarik'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Trio Tservonaja Kalinonka'
'TRCK' (Track number/Position in set)               '16/20'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.89, 192 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.88 dB'
'TXXX:replaygain_track_peak'                        '0.747269'

========================== row from database ==========================
                                              'id'  1528443
                                            'path'  /data/Music/Bulk/00instruments-classical/Les Menestrels d_Ukraine/16 - Track 16.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  128
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  3077494
                                           'mtime'  1679829688
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical d_Ukraine 16 Track 16 prerock classical or classical instruments
                                      'tag_artist'  Trio Tservonaja Kalinonka
                                     'tag_release'  Les Menestrels d'Ukraine
                                       'tag_title'  Dudarik
                                             'bpm'  98.4
                                    'search_title'  'dudarik':1
                                   'search_artist'  'kalinonka':3 'trio':1 'tservonaja':2
                                  'search_release'  'd':3 'dukraine':5 'les':1 'menestrels':2 'ukraine':4
                                     'search_rest'  '00instruments':1 'classical':2 'd':3 'instruments':8 'or':7 'prerock':6 'track':5 'ukraine':4
                                    'search_combo'  '00instruments':10 'classical':11 'd':7C,12 'dudarik':1A 'dukraine':9C 'instruments':17 'kalinonka':4B 'les':5C 'menestrels':6C 'or':16 'prerock':15 'track':14 'trio':2B 'tservonaja':3B 'ukraine':8C,13
                                    'tag_tracknum'  16
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-3', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1679829687.9833856  (2023-03-26 13:21:27)
                             'size'  3077494