======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '220'
                                          'artist'  'Chlebenikov'
                                     'text_people'  ''
                                         'release'  '?'
                                           'title'  'ling delle'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'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'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '88.1'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '?'
'TBPM' (BPM (beats per minute))                     '88.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TENC' (Encoded by)                                 'iTunes v1.0'
'TIT2' (Title/songname/content description)         'ling delle'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chlebenikov'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'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'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.07 dB'
'TXXX:replaygain_track_peak'                        '0.497307'

========================== row from database ==========================
                                              'id'  476818
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/mp3 [192k]/chlebnikov_ling_delle.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  220
                                           'genre'  electronic-unsorted
                                        'filesize'  5297527
                                           'mtime'  1678926644
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm mp3 [192k] chlebnikov_ling_delle electronic unsorted
                                      'tag_artist'  Chlebenikov
                                     'tag_release'  ?
                                       'tag_title'  ling delle
                                             'bpm'  88.1
                                    'search_title'  'delle':2 'ling':1
                                   'search_artist'  'chlebenikov':1
                                  'search_release'  
                                     'search_rest'  '192k':2,3 'chlebnikov':4 'delle':6 'electronic':7 'ling':5 'mp3':1 'unsorted':8
                                    'search_combo'  '192k':5,6 'chlebenikov':3B 'chlebnikov':7 'delle':2A,9 'electronic':10 'ling':1A,8 'mp3':4 'unsorted':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678926643.5531504  (2023-03-16 01:30:43)
                             'size'  5297527