======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '176'
                                          'artist'  'The Darkening Scale'
                                     'text_people'  'David Janssen/Renaldo and the Loaf'
                                         'release'  'Aerobic Dallying'
                                           'title'  'Cats'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['dark ambient', 'avant garde', 'ambiant', 'electronic', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '106.3'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Aerobic Dallying'
'TBPM' (BPM (beats per minute))                     '106.3'
'TCOM' (Composer)                                   'David Janssen/Renaldo and the Loaf'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2011'
'TIT2' (Title/songname/content description)         'Cats'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Darkening Scale'
'TPE2' (Band/orchestra/accompaniment)               'The Darkening Scale'
'TRCK' (Track number/Position in set)               '03'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dark ambient', 'avant garde', 'ambiant', 'electronic', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '+1.24 dB'
'TXXX:replaygain_track_peak'                        '0.566078'

========================== row from database ==========================
                                              'id'  654356
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/the darkening scale - aerobic dallying 2011/03 Cats.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  176
                                           'genre'  electronic
                                        'filesize'  7731405
                                           'mtime'  1636912898
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm the darkening scale aerobic dallying 2011 03 electronic
                                      'tag_artist'  The Darkening Scale
                                     'tag_release'  Aerobic Dallying
                                       'tag_title'  Cats
                                             'bpm'  106.3
                                    'search_title'  'cats':1
                                   'search_artist'  'darkening':2 'scale':3 'the':1
                                  'search_release'  'aerobic':1 'dallying':2
                                     'search_rest'  '2011':6 'aerobic':4 'dallying':5 'darkening':2 'electronic':7 'scale':3 'the':1
                                    'search_combo'  '2011':12 'aerobic':5C,10 'cats':1A 'dallying':6C,11 'darkening':3B,8 'electronic':13 'scale':4B,9 'the':2B,7
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  7A
                                           '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-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'avant garde', 'ambiant', 'electronic', 'experimental']
                                        'tag_date'  2011
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912898.009323  (2021-11-14 19:01:38)
                             'size'  7731405