======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '170'
                                          'artist'  'Trio Tservonaja Kalinonka'
                                     'text_people'  ''
                                         'release'  "Les Menestrels d'Ukraine"
                                           'title'  'Ljetit galka'
                                           '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-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '20'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '132.9'
                                             'key'  '10A'
                                        '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))                     '132.9'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Ljetit galka'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Trio Tservonaja Kalinonka'
'TRCK' (Track number/Position in set)               '2/20'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.61 dB'
'TXXX:replaygain_track_peak'                        '0.747546'

========================== row from database ==========================
                                              'id'  1532229
                                            'path'  /data/Music/Bulk/00instruments-classical/Les Menestrels d_Ukraine/02 - Track  2.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  170
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  4096269
                                           'mtime'  1679829438
                                   'redo_metaread'  0
                                        'rest_str'   00instruments classical d_Ukraine 02 Track 2 prerock classical or classical instruments
                                      'tag_artist'  Trio Tservonaja Kalinonka
                                     'tag_release'  Les Menestrels d'Ukraine
                                       'tag_title'  Ljetit galka
                                             'bpm'  132.9
                                    'search_title'  'galka':2 'ljetit':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 '2':6 'classical':2 'd':3 'instruments':9 'or':8 'prerock':7 'track':5 'ukraine':4
                                    'search_combo'  '00instruments':11 '2':16 'classical':12 'd':8C,13 'dukraine':10C 'galka':2A 'instruments':19 'kalinonka':5B 'les':6C 'ljetit':1A 'menestrels':7C 'or':18 'prerock':17 'track':15 'trio':3B 'tservonaja':4B 'ukraine':9C,14
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           '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-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1679829437.7184024  (2023-03-26 13:17:17)
                             'size'  4096269