======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '167'
                                          'artist'  'Squirrel Nut Zippers'
                                     'text_people'  ''
                                         'release'  'Perennial Favorites'
                                           'title'  'Fat Cat Keeps Getting Fatter'
                                           'quals'  ("['q-bass-4', 'q-vocals-3', 'q-play-3', 'q-unu-1', 'q-busy-3', 'q-piano-1', "
 "'q-jzfks-3', 'q-oldst-1', 'q-chart-2', 'q-grit-2', 'q-hhrnbtt-1', "
 "'q-drums-3', 'q-other-3', 'q-mixbeat-1', 'q-hap-3', 'q-syn-1', "
 "'q-localness-2']")
                                      'lastfmtags'  "['retro swing', 'alternative', 'jazz', 'retro', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  'e890d096-262f-434b-a4ab-78d673b9cc53'
                       'musicbrainz_albumartistid'  '31810c40-932a-4f2d-8cfd-17849844e2a6'
                            'musicbrainz_artistid'  '31810c40-932a-4f2d-8cfd-17849844e2a6'
                             'musicbrainz_trackid'  'be4f79bd-f40c-47bb-bb93-1cf8c9e76485'
                                     'tracknumber'  '5'
                                      'tracktotal'  '12'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-pop'
                                             'bpm'  '144.645'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'album'                                             'Perennial Favorites'
'albumartistsort'                                   'Squirrel Nut Zippers'
'artist'                                            'Squirrel Nut Zippers'
'artistsort'                                        'Squirrel Nut Zippers'
'asin'                                              'B000009PNN'
'barcode'                                           '035498016943'
'bpm'                                               '144.645'
'catalognumber'                                     '354 980169-4'
'date'                                              '1998'
'discogstags'                                       'jazz'
'format'                                            'Cassette'
'genre'                                             'prerock-jb-jazz-pop'
'key'                                               '4A'
'label'                                             'Mammoth Records'
'language'                                          'eng'
'lastfmtags'                                        ['retro swing', 'alternative', 'jazz', 'retro', 'swing']
'musicbrainz_albumartistid'                         '31810c40-932a-4f2d-8cfd-17849844e2a6'
'musicbrainz_albumid'                               'e890d096-262f-434b-a4ab-78d673b9cc53'
'musicbrainz_artistid'                              '31810c40-932a-4f2d-8cfd-17849844e2a6'
'musicbrainz_trackid'                               'be4f79bd-f40c-47bb-bb93-1cf8c9e76485'
'musicip_puid'                                      'c67d088e-d1b5-ff9d-384c-e822136fbab9'
'q-bass'                                            '4'
'q-busy'                                            '3'
'q-chart'                                           '2'
'q-drums'                                           '3'
'q-grit'                                            '2'
'q-hap'                                             '3'
'q-hhrnbtt'                                         '1'
'q-jzfks'                                           '3'
'q-localness'                                       '2'
'q-mixbeat'                                         '1'
'q-oldst'                                           '1'
'q-other'                                           '3'
'q-piano'                                           '1'
'q-play'                                            '3'
'q-syn'                                             '1'
'q-unu'                                             '1'
'q-vocals'                                          '3'
'releasecountry'                                    'US'
'releasestatus'                                     'official'
'releasetype'                                       'album'
'replaygain_track_gain'                             '-8.00 dB'
'replaygain_track_peak'                             '1.096572'
'script'                                            'Latn'
'title'                                             'Fat Cat Keeps Getting Fatter'
'tracknumber'                                       '5'
'tracktotal'                                        '12'

========================== row from database ==========================
                                              'id'  670599
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Squirrel Nut Zippers/Perennial_Favorites/ogg/05 - Fat Cat Keeps Getting Fatter.ogg
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  167
                                           'genre'  prerock-jb-jazz-pop
                                        'filesize'  3398003
                                           'mtime'  1620535557
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country Perennial_Favorites ogg 05 prerock jb jazz pop
                                      'tag_artist'  Squirrel Nut Zippers
                                     'tag_release'  Perennial Favorites
                                       'tag_title'  Fat Cat Keeps Getting Fatter
                                             'bpm'  144.645
                                    'search_title'  'cat':2 'fat':1 'fatter':5 'getting':4 'keeps':3
                                   'search_artist'  'nut':2 'squirrel':1 'zippers':3
                                  'search_release'  'favorites':2 'perennial':1
                                     'search_rest'  'country':4 'exotica':2 'favorites':6 'jazz':1 'jb':9 'ogg':7 'oldies':3 'perennial':5 'pop':10 'prerock':8
                                    'search_combo'  'cat':2A 'country':14 'exotica':12 'fat':1A 'fatter':5A 'favorites':10C,16 'getting':4A 'jazz':11 'jb':19 'keeps':3A 'nut':7B 'ogg':17 'oldies':13 'perennial':9C,15 'pop':20 'prerock':18 'squirrel':6B 'zippers':8B
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['q-mixbeat-1', 'q-chart-2', 'q-other-3', 'q-oldst-1', 'q-grit-2', 'q-hap-3', 'q-drums-3', 'q-busy-3', 'q-localness-2', 'q-jzfks-3', 'q-hhrnbtt-1', 'q-syn-1', 'q-piano-1', 'q-play-3', 'q-bass-4', 'q-vocals-3', 'q-unu-1']
                                      'lastfmtags'  ['retro swing', 'alternative', 'jazz', 'retro', 'swing']
                                        'tag_date'  1998
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620535557.1548707  (2021-05-09 06:45:57)
                             'size'  3398003