======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '231'
                                          'artist'  'C.B.'
                                     'text_people'  ''
                                         'release'  'Negro Prison Blues and Songs'
                                           'title'  'Whoa Buck'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-2', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'work song', '40s', 'vocaly superior', 'prison']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '23'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted;loc-namerica'
                                             'bpm'  '154'
                                             'key'  '6B'
                                        'acoustid'  '7ef2ec4f-5e6f-4b22-b5d6-968a5edd8fad'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Negro Prison Blues and Songs'
'TBPM' (BPM (beats per minute))                     '154'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-unsorted', 'loc-namerica']
'TDOR' (Original release time)                      '1994'
'TDRC' (Recording time)                             '1994-07-19'
'TIT2' (Title/songname/content description)         'Whoa Buck'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'C.B.'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Legacy International'
'TRCK' (Track number/Position in set)               '6/23'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Cook, C.B.'
'TXXX:ASIN'                                         'B000QQWXAS'
'TXXX:Acoustid Id'                                  '7ef2ec4f-5e6f-4b22-b5d6-968a5edd8fad'
'TXXX:Artists'                                      'C.B.'
'TXXX:BARCODE'                                      '076637032622'
'TXXX:CATALOGNUMBER'                                'CD 326'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '59734c31-c349-4daa-aa23-41c635561652'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '97fa8113-fa3f-4683-9b91-d6c22d36edfc'
'TXXX:MusicBrainz Release Group Id'                 'd53c6d86-d3ae-3d86-b2e5-a7057e5bd4f4'
'TXXX:MusicBrainz Release Track Id'                 'df5de6f3-401a-39c6-ad39-8545bfe70d0c'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['blues', 'work song', '40s', 'vocaly superior', 'prison']
'TXXX:originalyear'                                 '1994'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.01 dB'
'TXXX:replaygain_track_peak'                        '0.437346'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6fe48d3c-d121-4077-8c9e-24891c5df2af')

========================== row from database ==========================
                                              'id'  1119141
                                            'path'  /data/Music/Bulk/00localcharacter/01714 - Alan Lomax Prison Songs - Parchman Farm Vol.1 - Murderous Home/06 - CB - Whoa Buck.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  231
                                           'genre'  prerock-unsorted;loc-namerica
                                        'filesize'  3782318
                                           'mtime'  1621629600
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 01714 Alan Lomax Parchman Farm Vol.1 Murderous Home 06 CB prerock unsorted;loc namerica
                                      'tag_artist'  C.B.
                                     'tag_release'  Negro Prison Blues and Songs
                                       'tag_title'  Whoa Buck
                                             'bpm'  154.0
                                    'search_title'  'buck':2 'whoa':1
                                   'search_artist'  'b':2 'c':1 'cb':3
                                  'search_release'  'and':4 'blues':3 'negro':1 'prison':2 'songs':5
                                     'search_rest'  '01714':1 '1':7 'alan':2 'cb':11 'farm':5 'home':10 'loc':14,16 'lomax':3 'murderous':9 'namerica':17 'parchman':4 'prerock':12 'unsorted':13,15 'vol':6 'vol1':8
                                    'search_combo'  '01714':11 '1':17 'alan':12 'and':9C 'b':4B 'blues':8C 'buck':2A 'c':3B 'cb':5B,21 'farm':15 'home':20 'loc':24,26 'lomax':13 'murderous':19 'namerica':27 'negro':6C 'parchman':14 'prerock':22 'prison':7C 'songs':10C 'unsorted':23,25 'vol':16 'vol1':18 'whoa':1A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'work song', '40s', 'vocaly superior', 'prison']
                                        'tag_date'  1994
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629600.425919  (2021-05-21 22:40:00)
                             'size'  3782318