======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '213'
                                          'artist'  'Billy Jones & Ernest Hare'
                                     'text_people'  ''
                                         'release'  'Edison-51470 (9907)'
                                           'title'  'Laff It Off (Laugh It Off) (1924)'
                                           '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-2', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']"
                                     'discogstags'  "['novelty', 'pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1924'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '120.902'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Edison-51470 (9907)'
'TBPM' (BPM (beats per minute))                     '120.902'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1924'
'TIT2' (Title/songname/content description)         'Laff It Off (Laugh It Off) (1924)'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '213638'
'TPE1' (Lead performer(s)/Soloist(s))               'Billy Jones & Ernest Hare'
'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:discogstags'                                  ['novelty', 'pop']
'TXXX:lastfmtags'                                   ['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                        '+2.35 dB'
'TXXX:replaygain_track_peak'                        '0.409730'

========================== row from database ==========================
                                              'id'  1135493
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1920s and 1930s popular/Billy Jones & Ernest Hare - Laff It Off (Laugh It Off) 1924 Edison-51470 (9907).mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  213
                                           'genre'  prerock-vocal
                                        'filesize'  3028692
                                           'mtime'  1620666346
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1920s and 1930s popular prerock vocal
                                      'tag_artist'  Billy Jones & Ernest Hare
                                     'tag_release'  Edison-51470 (9907)
                                       'tag_title'  Laff It Off (Laugh It Off) (1924)
                                             'bpm'  120.902
                                    'search_title'  '1924':7,8 'it':2 'laff':1 'laugh':4,5 'off':3,6
                                   'search_artist'  'billy':1 'ernest':3 'hare':4 'jones':2
                                  'search_release'  '51470':2 '9907':4,5 'edison':1 'edison51470':3
                                     'search_rest'  '00oldiepop':5 '1920s':6 '1930s':8 'and':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'popular':9 'prerock':10 'vocal':11
                                    'search_combo'  '00oldiepop':22 '1920s':23 '1924':7A,8A '1930s':25 '51470':14C '9907':16C,17C 'and':24 'billy':9B 'country':21 'edison':13C 'edison51470':15C 'ernest':11B 'exotica':19 'hare':12B 'it':2A 'jazz':18 'jones':10B 'laff':1A 'laugh':4A,5A 'off':3A,6A 'oldies':20 'popular':26 'prerock':27 'vocal':28
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  10A
                                           '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-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['perfect', 'vaudeville', '1920s', 'all', 'acoustic era']
                                        'tag_date'  1924
                                     'discogstags'  ['novelty', 'pop']

============================== file details ==============================
                                           'mtime'  1620666346.082037  (2021-05-10 19:05:46)
                             'size'  3028692