======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '177'
                                          'artist'  'Jimmy Blythe'
                                     'text_people'  ''
                                         'release'  'Barney Google'
                                           'title'  'Barney Google'
                                           'quals'  ("['Q-JZFKS-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['boogie woogie', 'jazz', 'piano', 'blues', '2 of 10 stars']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '1'
                                            'date'  '1922'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '117.603'
                                             'key'  '9A'
                                        'acoustid'  'b35c2e90-0b9e-40d8-be6b-7f5b266cbd9f'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Barney Google'
'TBPM' (BPM (beats per minute))                     '117.603'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDOR' (Original release time)                      '1922'
'TDRC' (Recording time)                             '1922'
'TIT2' (Title/songname/content description)         'Barney Google'
'TKEY' (Initial key)                                '9A'
'TMED' (Media type)                                 'Piano Roll'
'TPE1' (Lead performer(s)/Soloist(s))               'Jimmy Blythe'
'TPE2' (Band/orchestra/accompaniment)               'Jimmy Blythe'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Columbia'
'TRCK' (Track number/Position in set)               '1/1'
'TSO2'                                              'Blythe, Jimmy'
'TSOP' (Performer sort order)                       'Blythe, Jimmy'
'TXXX:Acoustid Id'                                  'b35c2e90-0b9e-40d8-be6b-7f5b266cbd9f'
'TXXX:CATALOGNUMBER'                                '607'
'TXXX:MusicBrainz Album Artist Id'                  'f291b211-b2ee-4687-acce-fa055cd61f0a'
'TXXX:MusicBrainz Album Id'                         '5264014d-a85a-43ec-913f-f8b321b1aa05'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        'f291b211-b2ee-4687-acce-fa055cd61f0a'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['boogie woogie', 'jazz', 'piano', 'blues', '2 of 10 stars']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.42 dB'
'TXXX:replaygain_track_peak'                        '0.353750'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fd821d83-635a-45bd-828a-c51d9b04807b')

========================== row from database ==========================
                                              'id'  1146519
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Billy Jones & Ernest Hare - Barney Google (Columbia version) 1923.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  177
                                           'genre'  prerock-unsorted
                                        'filesize'  2505056
                                           'mtime'  1620385303
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular Billy Jones & Ernest Hare (Columbia version) 1923 prerock unsorted
                                      'tag_artist'  Jimmy Blythe
                                     'tag_release'  Barney Google
                                       'tag_title'  Barney Google
                                             'bpm'  117.603
                                    'search_title'  'barney':1 'google':2
                                   'search_artist'  'blythe':2 'jimmy':1
                                  'search_release'  'barney':1 'google':2
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1923':18 '1930s':8 'and':7 'billy':10 'columbia':14,15 'country':4 'ernest':12 'exotica':2 'hare':13 'jazz':1 'jones':11 'oldies':3 'popular':9 'prerock':19 'unsorted':20 'version':16,17
                                    'search_combo'  '00oldiepop':11 '1920s':12 '1923':24 '1930s':14 'and':13 'barney':1A,5C 'billy':16 'blythe':4B 'columbia':20,21 'country':10 'ernest':18 'exotica':8 'google':2A,6C 'hare':19 'jazz':7 'jimmy':3B 'jones':17 'oldies':9 'popular':15 'prerock':25 'unsorted':26 'version':22,23
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', '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-2', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['boogie woogie', 'jazz', 'piano', 'blues', '2 of 10 stars']
                                        'tag_date'  1922
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385302.6550643  (2021-05-07 13:01:42)
                             'size'  2505056