======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '155'
                                          'artist'  'California Ramblers'
                                     'text_people'  ''
                                         'release'  '20s and 30s popular'
                                           'title'  'Gotta Go to Work Again'
                                           'quals'  ("['Q-JZFKS-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['all', 'jazz', '20s', 'dixieland', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '22'
                                      'tracktotal'  '24'
                                            'date'  '1925'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '136.920'
                                             'key'  '5A'
                                        'acoustid'  '3d4b4e78-efdd-4aec-9b0f-d520d5c885dd'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '20s and 30s popular'
'TBPM' (BPM (beats per minute))                     '136.920'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDOR' (Original release time)                      '1993'
'TDRC' (Recording time)                             '1925'
'TIT2' (Title/songname/content description)         'Gotta Go to Work Again'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'California Ramblers'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Jass Records'
'TRCK' (Track number/Position in set)               '22/24'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'California Ramblers'
'TXXX:Acoustid Id'                                  '3d4b4e78-efdd-4aec-9b0f-d520d5c885dd'
'TXXX:BARCODE'                                      '032501263929'
'TXXX:CATALOGNUMBER'                                'J-CD-639'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'e5711571-6e02-48e7-829f-d5e00d1f8f83'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'ac2ae864-33c3-4dd8-872d-6c516cfc9db2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['all', 'jazz', '20s', 'dixieland', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.37 dB'
'TXXX:replaygain_track_peak'                        '0.327725'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9792dc09-881c-4208-b52c-88a1d5683e35')

========================== row from database ==========================
                                              'id'  1134817
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/The California Ramblers - Gotta Go To Work Again.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  155
                                           'genre'  prerock-unsorted
                                        'filesize'  2510879
                                           'mtime'  1620385519
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s 1930s The To prerock unsorted
                                      'tag_artist'  California Ramblers
                                     'tag_release'  20s and 30s popular
                                       'tag_title'  Gotta Go to Work Again
                                             'bpm'  136.92
                                    'search_title'  'again':5 'go':2 'gotta':1 'to':3 'work':4
                                   'search_artist'  'california':1 'ramblers':2
                                  'search_release'  '20s':1 '30s':3 'and':2 'popular':4
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':10 'the':8 'to':9 'unsorted':11
                                    'search_combo'  '00oldiepop':16 '1920s':17 '1930s':18 '20s':8C '30s':10C 'again':5A 'and':9C 'california':6B 'country':15 'exotica':13 'go':2A 'gotta':1A 'jazz':12 'oldies':14 'popular':11C 'prerock':21 'ramblers':7B 'the':19 'to':3A,20 'unsorted':22 'work':4A
                                    'tag_tracknum'  22
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-4', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['all', 'jazz', '20s', 'dixieland', 'swing']
                                        'tag_date'  1925
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385519.103806  (2021-05-07 13:05:19)
                             'size'  2510879