======================== unified (from filesystem) ========================
                                         'bitrate'  '192.02'
                                        'duration'  '140'
                                          'artist'  'Real Swell'
                                     'text_people'  ''
                                         'release'  'everything else is terrible!'
                                           'title'  'a brief respite while dreaming'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['indie pop', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '127.5'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'APIC:cover'                                        type PictureType.COVER_FRONT (Cover (front)) b'cover'
                                     
'TALB' (Album/Movie/Show title)                     'everything else is terrible!'
'TBPM' (BPM (beats per minute))                     '127.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'a brief respite while dreaming'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Real Swell'
'TPE2' (Band/orchestra/accompaniment)               'Real Swell'
'TRCK' (Track number/Position in set)               '7'
'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:discogstags'                                  ['indie pop', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.06 dB'
'TXXX:replaygain_track_peak'                        '0.611891'

========================== row from database ==========================
                                              'id'  1363812
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Real Swell - everything else is terrible!/07 a brief respite while dreaming.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  140
                                           'genre'  electronic-unsorted
                                        'filesize'  3566949
                                           'mtime'  1636756886
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 07 electronic unsorted
                                      'tag_artist'  Real Swell
                                     'tag_release'  everything else is terrible!
                                       'tag_title'  a brief respite while dreaming
                                             'bpm'  127.5
                                    'search_title'  'a':1 'brief':2 'dreaming':5 'respite':3 'while':4
                                   'search_artist'  'real':1 'swell':2
                                  'search_release'  'else':2 'everything':1 'is':3 'terrible':4
                                     'search_rest'  'electronic':1 'unsorted':2
                                    'search_combo'  'a':1A 'brief':2A 'dreaming':5A 'electronic':12 'else':9C 'everything':8C 'is':10C 'real':6B 'respite':3A 'swell':7B 'terrible':11C 'unsorted':13 'while':4A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2016
                                     'discogstags'  ['indie pop', 'pop', 'rock']

============================== file details ==============================
                                           'mtime'  1636756886.143208  (2021-11-12 23:41:26)
                             'size'  3566949