======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '210'
                                          'artist'  'Billy Murray & Premier Quartet'
                                     'text_people'  ''
                                         'release'  'Edison 50474-L'
                                           'title'  'Dixie Volunteers -2-1918 Edison'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1918'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '102.333'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            'None'
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'COMM:MusicMatch_Tempo:eng'                         'None'
'TALB' (Album/Movie/Show title)                     'Edison 50474-L'
'TBPM' (BPM (beats per minute))                     '102.333'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1918'
'TIT2' (Title/songname/content description)         'Dixie Volunteers -2-1918 Edison'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '211000'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Murray & Premier Quartet'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+1.52 dB'
'TXXX:replaygain_track_peak'                        '0.593145'

========================== row from database ==========================
                                              'id'  1453321
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1918/Billy Murray & Premier Quartet - Dixie Volunteers -2-1918.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  210
                                           'genre'  prerock-vocal
                                        'filesize'  4304083
                                           'mtime'  1620666281
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop prerock vocal
                                      'tag_artist'  Billy Murray & Premier Quartet
                                     'tag_release'  Edison 50474-L
                                       'tag_title'  Dixie Volunteers -2-1918 Edison
                                             'bpm'  102.333
                                    'search_title'  '1918':4 '2':3 '21918':5 'dixie':1 'edison':6 'volunteers':2
                                   'search_artist'  'billy':1 'murray':2 'premier':3 'quartet':4
                                  'search_release'  '50474':2 '50474l':4 'edison':1 'l':3
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'vocal':7
                                    'search_combo'  '00oldiepop':19 '1918':4A '2':3A '21918':5A '50474':12C '50474l':14C 'billy':7B 'country':18 'dixie':1A 'edison':6A,11C 'exotica':16 'jazz':15 'l':13C 'murray':8B 'oldies':17 'premier':9B 'prerock':20 'quartet':10B 'vocal':21 'volunteers':2A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1918
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620666280.9648633  (2021-05-10 19:04:40)
                             'size'  4304083