======================== unified (from filesystem) ========================
                                         'bitrate'  '155.106'
                                        'duration'  '225'
                                          'artist'  'Dave, Dee, Dozy, Beaky, Mick & Tich'
                                     'text_people'  ''
                                         'release'  '#1967'
                                           'title'  'Zabadak'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-2', "
 "'Q-MIXBEAT-2', 'Q-PLAY-2', 'Q-CHART-3', 'Q-LOCALNESS-1', 'q-bass-1', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-OLDST-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '131.8'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '#1967'
'TBPM' (BPM (beats per minute))                     '131.8'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         'Zabadak'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dave, Dee, Dozy, Beaky, Mick & Tich'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '3'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.13 dB'
'TXXX:replaygain_track_peak'                        '0.573414'

========================== row from database ==========================
                                              'id'  1539107
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/1967/Dave, Dee, Dozy, Beaky, Mick & Tich - Zabadak.mp3
                                         'working'  None
                                         'bitrate'  155
                                    'duration_sec'  225
                                           'genre'  rock-unsorted
                                        'filesize'  4371069
                                           'mtime'  1636912620
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock rock unsorted
                                      'tag_artist'  Dave, Dee, Dozy, Beaky, Mick & Tich
                                     'tag_release'  #1967
                                       'tag_title'  Zabadak
                                             'bpm'  131.8
                                    'search_title'  'zabadak':1
                                   'search_artist'  'beaky':7,8 'dave':1,2 'dee':3,4 'dozy':5,6 'mick':9 'tich':10
                                  'search_release'  '1967':1,2
                                     'search_rest'  '00poprockelectronic':1 'indierock':3 'poprock':2 'rock':4 'unsorted':5
                                    'search_combo'  '00poprockelectronic':14 '1967':12C,13C 'beaky':8B,9B 'dave':2B,3B 'dee':4B,5B 'dozy':6B,7B 'indierock':16 'mick':10B 'poprock':15 'rock':17 'tich':11B 'unsorted':18 'zabadak':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-MIXBEAT-2', 'Q-PLAY-2', 'Q-CHART-3', 'Q-LOCALNESS-1', 'q-bass-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-OLDST-2']
                                      'lastfmtags'  []
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912619.9283967  (2021-11-14 18:56:59)
                             'size'  4371069