======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '213'
                                          'artist'  'Biffy Clyro'
                                     'text_people'  ''
                                         'release'  'Ellipsis'
                                           'title'  'Howl'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'indie rock', 'indie', 'rock', 'scottish', 'alternative']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '13'
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '140.628'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ellipsis'
'TBPM' (BPM (beats per minute))                     '140.628'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Howl'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Biffy Clyro'
'TPE2' (Band/orchestra/accompaniment)               'Biffy Clyro'
'TRCK' (Track number/Position in set)               '10/13'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', 'indie rock', 'indie', 'rock', 'scottish', 'alternative']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.13 dB'
'TXXX:replaygain_track_peak'                        '0.327337'

========================== row from database ==========================
                                              'id'  1313821
                                            'path'  /data/Music/Bulk/00poprockelectronic/2016/Biffy Clyro - Howl.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  213
                                           'genre'  rock-unsorted
                                        'filesize'  8592365
                                           'mtime'  1620389148
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2016 rock unsorted
                                      'tag_artist'  Biffy Clyro
                                     'tag_release'  Ellipsis
                                       'tag_title'  Howl
                                             'bpm'  140.628
                                    'search_title'  'howl':1
                                   'search_artist'  'biffy':1 'clyro':2
                                  'search_release'  'ellipsis':1
                                     'search_rest'  '00poprockelectronic':1 '2016':2 'rock':3 'unsorted':4
                                    'search_combo'  '00poprockelectronic':5 '2016':6 'biffy':2B 'clyro':3B 'ellipsis':4C 'howl':1A 'rock':7 'unsorted':8
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'indie rock', 'indie', 'rock', 'scottish', 'alternative']
                                        'tag_date'  2016
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620389147.9696412  (2021-05-07 14:05:47)
                             'size'  8592365