======================== unified (from filesystem) ========================
                                         'bitrate'  '136.913'
                                        'duration'  '147'
                                          'artist'  'Robin Guthrie & Harold Budd'
                                     'text_people'  ''
                                         'release'  'Mysterious Skin'
                                           'title'  'The Discovery'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'Q-PLAY-3', 'q-syn-3', 'q-bass-1', 'q-busy-1', 'q-grit-1', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-vocals-1', 'q-mixbeat-1', "
 "'Q-PIANO-2']")
                                      'lastfmtags'  "['minimalism', 'electronic', 'minimal', 'ethereal', 'ambient']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '15'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'electronic-ambient'
                                             'bpm'  '130.1'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'APIC: '                                            type PictureType.COVER_BACK (Cover (back)) b' '
                                     
'COMM:iTunNORM:eng'                                 (' 000000C1 00000095 0000023A 0000022F 0000974F 0000974F 000029A5 00002398 '
 '000185DE 0000974F')
'TALB' (Album/Movie/Show title)                     'Mysterious Skin'
'TBPM' (BPM (beats per minute))                     '130.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-ambient'
'TCOP' (Copyright message)                          '© 2005 Commotion Records, LLC'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'The Discovery'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Robin Guthrie & Harold Budd'
'TRCK' (Track number/Position in set)               '12/15'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['minimalism', 'electronic', 'minimal', 'ethereal', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.554000'

========================== row from database ==========================
                                              'id'  1381560
                                            'path'  /data/Music/Bulk/00poprockelectronic/00ambient/Robin Guthrie & Harold Budd - Mysterious Skin/12 The Discovery.mp3
                                         'working'  None
                                         'bitrate'  136
                                    'duration_sec'  147
                                           'genre'  electronic-ambient
                                        'filesize'  2667562
                                           'mtime'  1636910818
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00ambient 12 electronic ambient
                                      'tag_artist'  Robin Guthrie & Harold Budd
                                     'tag_release'  Mysterious Skin
                                       'tag_title'  The Discovery
                                             'bpm'  130.1
                                    'search_title'  'discovery':2 'the':1
                                   'search_artist'  'budd':4 'guthrie':2 'harold':3 'robin':1
                                  'search_release'  'mysterious':1 'skin':2
                                     'search_rest'  '00ambient':2 '00poprockelectronic':1 'ambient':4 'electronic':3
                                    'search_combo'  '00ambient':10 '00poprockelectronic':9 'ambient':12 'budd':6B 'discovery':2A 'electronic':11 'guthrie':4B 'harold':5B 'mysterious':7C 'robin':3B 'skin':8C 'the':1A
                                    'tag_tracknum'  12
                                      'num_images'  2
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-1', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minimalism', 'electronic', 'minimal', 'ethereal', 'ambient']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910818.2435062  (2021-11-14 18:26:58)
                             'size'  2667562