======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '196'
                                          'artist'  'vas dum sel spat'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'cortez'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '91.763'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM:CDDB Disc ID:XXX'                             '87124919'
'COMM:ID3v1 Comment:XXX'                            '87124919'
'TBPM' (BPM (beats per minute))                     '91.763'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TIT2' (Title/songname/content description)         'cortez'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'vas dum sel spat'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '12'
'TSSE' (Software/Hardware and settings used for encoding)  'Audiograbber 1.80, LAME dll 3.88, 128 Kbit/s, Joint Stereo, Normal quality'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.14 dB'
'TXXX:replaygain_track_peak'                        '0.869702'

========================== row from database ==========================
                                              'id'  443455
                                            'path'  /data/Music/Bulk/00localcharacter/Russendisko/z50ychLET/12 - vas dum sel spat - cortez.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  196
                                           'genre'  loc-unsorted
                                        'filesize'  3141221
                                           'mtime'  1620401340
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter Russendisko z50ychLET 12 loc unsorted
                                      'tag_artist'  vas dum sel spat
                                     'tag_release'  None
                                       'tag_title'  cortez
                                             'bpm'  91.763
                                    'search_title'  'cortez':1
                                   'search_artist'  'dum':2 'sel':3 'spat':4 'vas':1
                                  'search_release'  
                                     'search_rest'  'let':6 'loc':3 'russendisko':1 'unsorted':4 'z50ych':5 'z50ychlet':2
                                    'search_combo'  'cortez':1A 'dum':3B 'let':11 'loc':8 'russendisko':6 'sel':4B 'spat':5B 'unsorted':9 'vas':2B 'z50ych':10 'z50ychlet':7
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620401339.5784717  (2021-05-07 17:28:59)
                             'size'  3141221