======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '155'
                                          'artist'  "Belf's Rumynski Orkestr"
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Khotinskaya'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-3', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-4', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1912'
                                        'comments'  ''
                                           'genre'  'loc-romania'
                                             'bpm'  '131.8'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '131.8'
'TCON' (Content type, a.k.a. Genre)                 'loc-romania'
'TDRC' (Recording time)                             '1912'
'TIT2' (Title/songname/content description)         'Khotinskaya'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '155000'
'TPE1' (Lead performer(s)/Soloist(s))               "Belf's Rumynski Orkestr"
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '4'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '3'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.35 dB'
'TXXX:replaygain_track_peak'                        '0.441756'

========================== row from database ==========================
                                              'id'  1506022
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1912/Belf_s Rumynski Orkestr - Khotinskaya 1912.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  155
                                           'genre'  loc-romania
                                        'filesize'  3212978
                                           'mtime'  1621626183
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1912 Belf_s 1912 loc romania
                                      'tag_artist'  Belf's Rumynski Orkestr
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Khotinskaya
                                             'bpm'  131.8
                                    'search_title'  'khotinskaya':1
                                   'search_artist'  'belf':1 'belfs':3 'orkestr':5 'rumynski':4 's':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1912':6 'belf':7 'country':4 'exotica':2 'jazz':1 'loc':9 'oldies':3 'romania':10 's':8
                                    'search_combo'  '00oldiepop':16 '1912':17 'album':8C 'belf':2B,18 'belfs':4B 'country':15 'exotica':13 'jazz':12 'khotinskaya':1A 'loc':20 'non':7C 'nonalbum':9C 'oldies':14 'orkestr':6B 'romania':21 'rumynski':5B 's':3B,19 'tracks':10C,11C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1912
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621626182.7994313  (2021-05-21 21:43:02)
                             'size'  3212978