======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '150'
                                          'artist'  'Dinwiddie Colored Quartet'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  'Down On The Old Camp Ground'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', '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-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['spiritual', 'gospel', 'vocal group', 'vocal', 'virginia']"
                                     'discogstags'  "['gospel', 'folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1902'
                                        'comments'  ''
                                           'genre'  'prerock-spiritual or gospel'
                                             'bpm'  '131.2'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '131.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-spiritual or gospel'
'TDRC' (Recording time)                             '1902'
'TIT2' (Title/songname/content description)         'Down On The Old Camp Ground'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '150000'
'TPE1' (Lead performer(s)/Soloist(s))               'Dinwiddie Colored Quartet'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['gospel', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['spiritual', 'gospel', 'vocal group', 'vocal', 'virginia']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.06 dB'
'TXXX:replaygain_track_peak'                        '0.404218'

========================== row from database ==========================
                                              'id'  1465004
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1902/Dinwiddie Colored Quartet - Down On The Old Camp Ground 1902.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  150
                                           'genre'  prerock-spiritual or gospel
                                        'filesize'  3079670
                                           'mtime'  1642095558
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1902 1902 prerock spiritual gospel
                                      'tag_artist'  Dinwiddie Colored Quartet
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Down On The Old Camp Ground
                                             'bpm'  131.2
                                    'search_title'  'camp':5 'down':1 'ground':6 'old':4 'on':2 'the':3
                                   'search_artist'  'colored':2 'dinwiddie':1 'quartet':3
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1902':6 'country':4 'exotica':2 'gospel':9 'jazz':1 'oldies':3 'prerock':7 'spiritual':8
                                    'search_combo'  '00oldiepop':19 '1902':20 'album':11C 'camp':5A 'colored':8B 'country':18 'dinwiddie':7B 'down':1A 'exotica':16 'gospel':23 'ground':6A 'jazz':15 'non':10C 'nonalbum':12C 'old':4A 'oldies':17 'on':2A 'prerock':21 'quartet':9B 'spiritual':22 'the':3A 'tracks':13C,14C
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', '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-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['spiritual', 'gospel', 'vocal group', 'vocal', 'virginia']
                                        'tag_date'  1902
                                     'discogstags'  ['gospel', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1642095558.0048892  (2022-01-13 18:39:18)
                             'size'  3079670