======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '355'
                                          'artist'  'The Manhattan Transfer'
                                     'text_people'  ''
                                         'release'  'kerst'
                                           'title'  'It Came Upon The Midnight Clear'
                                           'quals'  ("['Q-HAP-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'vocal jazz', 'vocal', 'swing', 'pop', '77davez all tracks']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted;set-th-christmas'
                                             'bpm'  '142.7'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'kerst'
'TBPM' (BPM (beats per minute))                     '142.7'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-jb-jazz-unsorted', 'set-th-christmas']
'TIT2' (Title/songname/content description)         'It Came Upon The Midnight Clear'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '355186'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Manhattan Transfer'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'vocal jazz', 'vocal', 'swing', 'pop', '77davez all tracks']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.72 dB'
'TXXX:replaygain_track_peak'                        '0.608183'

========================== row from database ==========================
                                              'id'  1534589
                                            'path'  /data/Music/Bulk/00poprockelectronic/Manhattan Transfer - It Came Upon A Midnight Clear.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  355
                                           'genre'  prerock-jb-jazz-unsorted;set-th-christmas
                                        'filesize'  4263808
                                           'mtime'  1620540458
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic A prerock jb jazz unsorted;set th christmas
                                      'tag_artist'  The Manhattan Transfer
                                     'tag_release'  kerst
                                       'tag_title'  It Came Upon The Midnight Clear
                                             'bpm'  142.7
                                    'search_title'  'came':2 'clear':6 'it':1 'midnight':5 'the':4 'upon':3
                                   'search_artist'  'manhattan':2 'the':1 'transfer':3
                                  'search_release'  'kerst':1
                                     'search_rest'  '00poprockelectronic':1 'a':2 'christmas':11 'jazz':5 'jb':4 'prerock':3 'set':7,9 'th':10 'unsorted':6,8
                                    'search_combo'  '00poprockelectronic':11 'a':12 'came':2A 'christmas':21 'clear':6A 'it':1A 'jazz':15 'jb':14 'kerst':10C 'manhattan':8B 'midnight':5A 'prerock':13 'set':17,19 'th':20 'the':4A,7B 'transfer':9B 'unsorted':16,18 'upon':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'vocal jazz', 'vocal', 'swing', 'pop', '77davez all tracks']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620540458.4203668  (2021-05-09 08:07:38)
                             'size'  4263808