======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '239'
                                          'artist'  'Pimmon'
                                     'text_people'  ''
                                         'release'  'Epitonic Abstract'
                                           'title'  'Arc of Crown and Feather'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['glitch', 'noise', 'electronic', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '88.6'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Epitonic Abstract'
'TBPM' (BPM (beats per minute))                     '88.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Arc of Crown and Feather'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Pimmon'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'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'                                   ['glitch', 'noise', 'electronic', 'experimental', 'ambient']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+6.32 dB'
'TXXX:replaygain_track_peak'                        '0.919204'

========================== row from database ==========================
                                              'id'  985900
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Epitonic abstract/Pimmon-Arc of Crown and Feather.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  239
                                           'genre'  electronic
                                        'filesize'  3827004
                                           'mtime'  1636912448
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm abstract electronic
                                      'tag_artist'  Pimmon
                                     'tag_release'  Epitonic Abstract
                                       'tag_title'  Arc of Crown and Feather
                                             'bpm'  88.6
                                    'search_title'  'and':4 'arc':1 'crown':3 'feather':5 'of':2
                                   'search_artist'  'pimmon':1
                                  'search_release'  'abstract':2 'epitonic':1
                                     'search_rest'  'abstract':1 'electronic':2
                                    'search_combo'  'abstract':8C,9 'and':4A 'arc':1A 'crown':3A 'electronic':10 'epitonic':7C 'feather':5A 'of':2A 'pimmon':6B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['glitch', 'noise', 'electronic', 'experimental', 'ambient']
                                        'tag_date'  2001
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636912447.5184937  (2021-11-14 18:54:07)
                             'size'  3827004