======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '123'
                                          'artist'  'A Cloakroom Assembly'
                                     'text_people'  ''
                                         'release'  '41 Pardons: M Squared Rare Recordings 1979-1983 Volume 1'
                                           'title'  'Tom Salted'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['deepspaceone', 'dark ambient', 'minimal', 'experimental', 'ambient']"
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '85.0'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Art (Front).jpg'                        type PictureType.COVER_FRONT (Cover (front)) b'Cover Art (Front).jpg'
                                     
'TALB' (Album/Movie/Show title)                     '41 Pardons: M Squared Rare Recordings 1979-1983 Volume 1'
'TBPM' (BPM (beats per minute))                     '85.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Tom Salted'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'A Cloakroom Assembly'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1'
'TPUB' (Publisher)                                  'Ascension Records (5)'
'TRCK' (Track number/Position in set)               '15'
'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', 'experimental']
'TXXX:lastfmtags'                                   ['deepspaceone', 'dark ambient', 'minimal', 'experimental', 'ambient']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.65 dB'
'TXXX:replaygain_track_peak'                        '0.686335'

========================== row from database ==========================
                                              'id'  1367235
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Scattered Order - 41 Pardons (M Squared Rare Recordings 1979-1983 Volume 1)/1.15 - A Cloakroom Assembly - Tom Salted.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  123
                                           'genre'  electronic
                                        'filesize'  2009763
                                           'mtime'  1636912676
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Scattered Order (M 1) 1.15 electronic
                                      'tag_artist'  A Cloakroom Assembly
                                     'tag_release'  41 Pardons: M Squared Rare Recordings 1979-1983 Volume 1
                                       'tag_title'  Tom Salted
                                             'bpm'  85.0
                                    'search_title'  'salted':2 'tom':1
                                   'search_artist'  'a':1 'assembly':3 'cloakroom':2
                                  'search_release'  '1':12 '1979':8 '19791983':10 '1983':9 '41':1 'm':4 'pardons':2,3 'rare':6 'recordings':7 'squared':5 'volume':11
                                     'search_rest'  '1':5,6,7 '115':9 '15':8 'electronic':10 'm':3,4 'order':2 'scattered':1
                                    'search_combo'  '1':17C,22,23,24 '115':26 '15':25 '1979':13C '19791983':15C '1983':14C '41':6C 'a':3B 'assembly':5B 'cloakroom':4B 'electronic':27 'm':9C,20,21 'order':19 'pardons':7C,8C 'rare':11C 'recordings':12C 'salted':2A 'scattered':18 'squared':10C 'tom':1A 'volume':16C
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['deepspaceone', 'dark ambient', 'minimal', 'experimental', 'ambient']
                                        'tag_date'  1980
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1636912675.756462  (2021-11-14 18:57:55)
                             'size'  2009763