======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '273'
                                          'artist'  'Wouter van Veldhoven'
                                     'text_people'  ''
                                         'release'  'A head stuck in tapes'
                                           'title'  'Part2. A head stuck in tapes 4'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['minimalism', 'soundscape', 'electro acoustic', 'minimal', 'ambient']"
                                     'discogstags'  "['minimal techno', 'musique concrète', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-minimal'
                                             'bpm'  '143.3'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'APIC:cover'                                        type PictureType.COVER_FRONT (Cover (front)) b'cover'
                                     
'TALB' (Album/Movie/Show title)                     'A head stuck in tapes'
'TBPM' (BPM (beats per minute))                     '143.3'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-minimal'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Part2. A head stuck in tapes 4'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wouter van Veldhoven'
'TPE2' (Band/orchestra/accompaniment)               'Wouter van Veldhoven'
'TRCK' (Track number/Position in set)               '10'
'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'                                  ['minimal techno', 'musique concrète', 'electronic', 'experimental']
'TXXX:lastfmtags'                                   ['minimalism', 'soundscape', 'electro acoustic', 'minimal', 'ambient']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.38 dB'
'TXXX:replaygain_track_peak'                        '0.891365'

========================== row from database ==========================
                                              'id'  1346012
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Sima Kim and Wouter Van Veldhoven - Wouter van Veldhoven/2016  - A head stuck in tapes [sr] {8}/Wouter van Veldhoven - A head stuck in tapes - 10 Part2. A head stuck in tapes 4.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  273
                                           'genre'  electronic-experimental-minimal
                                        'filesize'  10987918
                                           'mtime'  1636473368
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Sima Kim and Van 2016 [sr] {8} 10 electronic experimental minimal
                                      'tag_artist'  Wouter van Veldhoven
                                     'tag_release'  A head stuck in tapes
                                       'tag_title'  Part2. A head stuck in tapes 4
                                             'bpm'  143.3
                                    'search_title'  '4':8 'a':3 'head':4 'in':6 'part2':1,2 'stuck':5 'tapes':7
                                   'search_artist'  'van':2 'veldhoven':3 'wouter':1
                                  'search_release'  'a':1 'head':2 'in':4 'stuck':3 'tapes':5
                                     'search_rest'  '2016':5 '8':8 'and':3 'electronic':9 'experimental':10 'kim':2 'minimal':11 'sima':1 'sr':6,7 'van':4
                                    'search_combo'  '2016':21 '4':8A '8':24 'a':3A,12C 'and':19 'electronic':25 'experimental':26 'head':4A,13C 'in':6A,15C 'kim':18 'minimal':27 'part2':1A,2A 'sima':17 'sr':22,23 'stuck':5A,14C 'tapes':7A,16C 'van':10B,20 'veldhoven':11B 'wouter':9B
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['minimalism', 'soundscape', 'electro acoustic', 'minimal', 'ambient']
                                        'tag_date'  2016
                                     'discogstags'  ['minimal techno', 'musique concrète', 'electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636473368.3228803  (2021-11-09 16:56:08)
                             'size'  10987918