======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '201'
                                          'artist'  'Tommy Dorsey'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Music Goes Round And Around (vocal - Edythe Wright)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', "
 "'trombone']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-band'
                                             'bpm'  '97.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TBPM' (BPM (beats per minute))                     '97.1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-band'
'TDRC' (Recording time)                             '1935-12-09'
'TIT2' (Title/songname/content description)         'Music Goes Round And Around (vocal - Edythe Wright)'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '201000'
'TPE1' (Lead performer(s)/Soloist(s))               'Tommy Dorsey'
'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:lastfmtags'                                   ['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', 'trombone']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.73 dB'
'TXXX:replaygain_track_peak'                        '0.493597'

========================== row from database ==========================
                                              'id'  1464055
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1935/Tommy Dorsey - Music Goes Round And Around (vocal - Edythe Wright) 9-12-1935.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  201
                                           'genre'  prerock-band
                                        'filesize'  4076921
                                           'mtime'  1620560419
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1935 9 12 1935 prerock band
                                      'tag_artist'  Tommy Dorsey
                                     'tag_release'  None
                                       'tag_title'  Music Goes Round And Around (vocal - Edythe Wright)
                                             'bpm'  97.1
                                    'search_title'  'and':4 'around':5 'edythe':8 'goes':2 'music':1 'round':3 'vocal':6,7 'wright':9,10
                                   'search_artist'  'dorsey':2 'tommy':1
                                  'search_release'  
                                     'search_rest'  '00oldiepop':5 '1935':6 '9':7 'band':9 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8
                                    'search_combo'  '00oldiepop':17 '1935':18 '9':19 'and':4A 'around':5A 'band':21 'country':16 'dorsey':12B 'edythe':8A 'exotica':14 'goes':2A 'jazz':13 'music':1A 'oldies':15 'prerock':20 'round':3A 'tommy':11B 'vocal':6A,7A 'wright':9A,10A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  ['big bands of the 30s and 40s', 'jazz', 'big band', '40s', 'swing', 'trombone']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620560418.9315996  (2021-05-09 13:40:18)
                             'size'  4076921