======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '186'
                                          'artist'  'Cavan O\x19 Connor'
                                     'text_people'  ''
                                         'release'  'Broadcast  892'
                                           'title'  "Clouds Will Soon Roll By (as Terence O' Brien)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1932'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '133.491'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Broadcast  892'
'TBPM' (BPM (beats per minute))                     '133.491'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1932'
'TIT2' (Title/songname/content description)         "Clouds Will Soon Roll By (as Terence O' Brien)"
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Cavan O\x19 Connor'
'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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.83 dB'
'TXXX:replaygain_track_peak'                        '0.551869'

========================== row from database ==========================
                                              'id'  1509018
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1932/Cavan O’ Connor - Clouds Will Soon Roll By (as Terence O_ Brien) -8-1932.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  186
                                           'genre'  prerock-unsorted
                                        'filesize'  3735346
                                           'mtime'  1621697942
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1932 O’ O_ 1932 prerock unsorted
                                      'tag_artist'  Cavan O Connor
                                     'tag_release'  Broadcast  892
                                       'tag_title'  Clouds Will Soon Roll By (as Terence O' Brien)
                                             'bpm'  133.491
                                    'search_title'  'as':6,7 'brien':11,12 'by':5 'clouds':1 'o':9,10 'roll':4 'soon':3 'terence':8 'will':2
                                   'search_artist'  'cavan':1 'connor':3 'o':2
                                  'search_release'  '892':2 'broadcast':1
                                     'search_rest'  '00oldiepop':5 '1932':6 'country':4 'exotica':2 'jazz':1 'o':7,8 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':22 '1932':23 '892':17C 'as':6A,7A 'brien':11A,12A 'broadcast':16C 'by':5A 'cavan':13B 'clouds':1A 'connor':15B 'country':21 'exotica':19 'jazz':18 'o':9A,10A,14B,24,25 'oldies':20 'prerock':26 'roll':4A 'soon':3A 'terence':8A 'unsorted':27 'will':2A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             '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-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1932
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697941.911506  (2021-05-22 17:39:01)
                             'size'  3735346